She shouted on the mountaintop and listened for the echo.

她在山声喊着，然后聆听着回声。

The echo resounded back to us.

回声传回到我们的耳中。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙蝠而言，视觉退化的根本原因在于它具有一种更发达的回声定位能力。

Methods The size,echo intensity on 2-DUS and blood flow on CDFI in sternocleidomastoid mascle(SCM) masses in 46 infants were examined,measured and analysed.

方法总结析46例胸锁乳突肌(SCM)肿块的超声检查资料,析其小、内部回声及多普勒血流信号。

I tapped the melon lightly, the way my mother does in the supermarket, listening for the hollow sound of the freshness: Pung, pung.

母亲在市场挑瓜那样，我也在瓜轻轻地敲了敲，听里面有没有空洞洞的瓜熟的声音。果然传来“砰砰”的回声。

The imaging protocol for the mica samples consisted of a spin-echo pulse sequence with multiecho acquisition to collect images at seeral parallel echo times, the authors explained.

该研究报告的作者解释，云母标本议包括自旋回声脉冲串和在几个平行回声时间段收集的多回声影。

She shouted on the mountaintop and listened for the echo.

她在山顶上大声喊着，然后聆听着回声。

The echo resounded back to us.

回声传回到我们的耳中。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙蝠而言，视觉退化的根本原因在于它具有一种更发达的回声定位能力。

Methods The size,echo intensity on 2-DUS and blood flow on CDFI in sternocleidomastoid mascle(SCM) masses in 46 infants were examined,measured and analysed.

方法总结析46例胸锁乳突肌(SCM)肿块的超声检查资料,析其大小、内部回声及多普勒血流信号。

I tapped the melon lightly, the way my mother does in the supermarket, listening for the hollow sound of the freshness: Pung, pung.

像母亲在市场挑瓜那样，我也在瓜上轻轻地敲了敲，听里面有没有空洞洞的瓜熟的声音。果然传来“砰砰”的回声。

The imaging protocol for the mica samples consisted of a spin-echo pulse sequence with multiecho acquisition to collect images at seeral parallel echo times, the authors explained.

该研究报告的作者解释，云母标本成像协议包括自旋回声脉在几个平行回声时间段收集的多回声影像。

She shouted on the mountaintop and listened for the echo.

在山顶上大声喊着，然后聆听着回声。

The echo resounded back to us.

回声传回到我们的耳中。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙蝠而言，视觉退化的根本原因在于它具有一种更发达的回声定位能力。

Methods The size,echo intensity on 2-DUS and blood flow on CDFI in sternocleidomastoid mascle(SCM) masses in 46 infants were examined,measured and analysed.

方法总结析46例胸锁乳突肌(SCM)肿块的超声检查资料,析其大小、内部回声及多普勒血流信号。

I tapped the melon lightly, the way my mother does in the supermarket, listening for the hollow sound of the freshness: Pung, pung.

像母亲在市场挑瓜那样，我也在瓜上轻轻地敲了敲，听里面有没有空洞洞的瓜熟的声音。果然传来“砰砰”的回声。

The imaging protocol for the mica samples consisted of a spin-echo pulse sequence with multiecho acquisition to collect images at seeral parallel echo times, the authors explained.

该研究报告的作者解释，云母标本成像协议包回声脉冲串和在几个平行回声时间段收集的多回声影像。

She shouted on the mountaintop and listened for the echo.

她在山顶上大声喊着，然后聆听着回声。

The echo resounded back to us.

回声传回到我们的耳中。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙蝠而言，视觉退化的根在于它具有一种更发达的回声定位能力。

Methods The size,echo intensity on 2-DUS and blood flow on CDFI in sternocleidomastoid mascle(SCM) masses in 46 infants were examined,measured and analysed.

方法总结析46例胸锁乳突肌(SCM)肿块的超声检查资料,析其大小、内部回声及多普勒血流信号。

I tapped the melon lightly, the way my mother does in the supermarket, listening for the hollow sound of the freshness: Pung, pung.

像母亲在市场挑瓜那样，我也在瓜上轻轻地敲了敲，听有没有空洞洞的瓜熟的声音。果然传来“砰砰”的回声。

The imaging protocol for the mica samples consisted of a spin-echo pulse sequence with multiecho acquisition to collect images at seeral parallel echo times, the authors explained.

该研究报告的作者解释，云母标成像协议包括自旋回声脉冲串和在几个平行回声时间段收集的多回声影像。

She shouted on the mountaintop and listened for the echo.

她在山顶上大声喊着，然后聆听着回声。

The echo resounded back to us.

回声传回到我们的耳中。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙蝠而言，视觉退化的根本原因在于它具有一种更发达的回声定位能力。

Methods The size,echo intensity on 2-DUS and blood flow on CDFI in sternocleidomastoid mascle(SCM) masses in 46 infants were examined,measured and analysed.

方法析46例胸锁乳突肌(SCM)肿块的超声检查资料,析其大小、内部回声及多普勒血流信号。

I tapped the melon lightly, the way my mother does in the supermarket, listening for the hollow sound of the freshness: Pung, pung.

在市场挑瓜那样，我也在瓜上轻轻地敲了敲，听里面有没有空洞洞的瓜熟的声音。果然传来“砰砰”的回声。

The imaging protocol for the mica samples consisted of a spin-echo pulse sequence with multiecho acquisition to collect images at seeral parallel echo times, the authors explained.

该研究报告的作者解释，云标本成协议包括自旋回声脉冲串和在几个平行回声时间段收集的多回声影。

She shouted on the mountaintop and listened for the echo.

她在山顶上大喊着，然后聆听着。

The echo resounded back to us.

传耳中。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙蝠而言，视觉退化根本原因在于它具有一种更发达定位能力。

Methods The size,echo intensity on 2-DUS and blood flow on CDFI in sternocleidomastoid mascle(SCM) masses in 46 infants were examined,measured and analysed.

方法总结析46例胸锁乳突肌(SCM)肿块超检查资料,析其大小、内部及多普勒血流信号。

I tapped the melon lightly, the way my mother does in the supermarket, listening for the hollow sound of the freshness: Pung, pung.

像母亲在市场挑瓜那样，也在瓜上轻轻地敲了敲，听里面有没有空洞洞瓜熟音。果然传来“砰砰”。

The imaging protocol for the mica samples consisted of a spin-echo pulse sequence with multiecho acquisition to collect images at seeral parallel echo times, the authors explained.

该研究报告作者解释，云母标本成像协议包括自旋脉冲串和在几个平行时间段收集多影像。

She shouted on the mountaintop and listened for the echo.

她在山顶上大声喊着，然后聆听着回声。

The echo resounded back to us.

回声传回到我们的耳中。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙蝠而言，视觉退化的根本原因在于它具有一种更发达的回声定位能力。

Methods The size,echo intensity on 2-DUS and blood flow on CDFI in sternocleidomastoid mascle(SCM) masses in 46 infants were examined,measured and analysed.

方法总结46例胸锁乳突肌(SCM)肿块的超声检查,大小、内部回声及多普勒血流信号。

I tapped the melon lightly, the way my mother does in the supermarket, listening for the hollow sound of the freshness: Pung, pung.

像母亲在市场挑瓜那样，我也在瓜上轻轻地敲了敲，听里面有没有空洞洞的瓜熟的声音。果然传来“砰砰”的回声。

The imaging protocol for the mica samples consisted of a spin-echo pulse sequence with multiecho acquisition to collect images at seeral parallel echo times, the authors explained.

该研究报告的作者解释，云母标本成像协议包括自旋回声脉冲串和在几个平行回声时间段收集的多回声影像。

She shouted on the mountaintop and listened for the echo.

她山顶上大声喊着，然后聆听着回声。

The echo resounded back to us.

回声传回到我们耳中。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙蝠而言，视觉退化根本原因于它具有一种更回声定位能力。

Methods The size,echo intensity on 2-DUS and blood flow on CDFI in sternocleidomastoid mascle(SCM) masses in 46 infants were examined,measured and analysed.

方法总结析46例胸锁乳突肌(SCM)肿块超声检查资料,析其大小、内部回声及多普勒血流信号。

I tapped the melon lightly, the way my mother does in the supermarket, listening for the hollow sound of the freshness: Pung, pung.

像母亲市场挑那样，我上轻轻地敲了敲，听里面有没有空洞洞熟声音。果然传来“砰砰”回声。

The imaging protocol for the mica samples consisted of a spin-echo pulse sequence with multiecho acquisition to collect images at seeral parallel echo times, the authors explained.

该研究报告作者解释，云母标本成像协议包括自旋回声脉冲串和几个平行回声时间段收集多回声影像。

She shouted on the mountaintop and listened for the echo.

她山顶上大声喊着，然后聆听着回声。

The echo resounded back to us.

回声传回到我们耳中。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙蝠而言，视觉退化根本原因于它具有一种更回声定位能力。

Methods The size,echo intensity on 2-DUS and blood flow on CDFI in sternocleidomastoid mascle(SCM) masses in 46 infants were examined,measured and analysed.

方法总结析46例胸锁乳突肌(SCM)肿块超声检查资料,析其大小、内部回声及多普勒血流信号。

I tapped the melon lightly, the way my mother does in the supermarket, listening for the hollow sound of the freshness: Pung, pung.

像母亲市场挑那样，我上轻轻地敲了敲，听里面有没有空洞洞熟声音。果然传来“砰砰”回声。

The imaging protocol for the mica samples consisted of a spin-echo pulse sequence with multiecho acquisition to collect images at seeral parallel echo times, the authors explained.

该研究报告作者解释，云母标本成像协议包括自旋回声脉冲串和几个平行回声时间段收集多回声影像。

She shouted on the mountaintop and listened for the echo.

她在山顶上大喊，然后聆听。

The echo resounded back to us.

传到我们耳中。

Our findings indicate that both opsin genes have been under purifying selection in the majority bats despite a long history of nocturnality.

但对恒频蝙蝠而言，视觉退化根本原因在于它具有一种更发达定位能力。

Methods The size,echo intensity on 2-DUS and blood flow on CDFI in sternocleidomastoid mascle(SCM) masses in 46 infants were examined,measured and analysed.

方法总结析46例胸锁乳突肌(SCM)肿块超检查资料,析其大小、内部及多普勒血流信号。

I tapped the melon lightly, the way my mother does in the supermarket, listening for the hollow sound of the freshness: Pung, pung.

像母亲在市场挑瓜那样，我也在瓜上轻轻地敲了敲，听里面有没有空洞洞瓜熟音。果然传来“砰砰”。

The imaging protocol for the mica samples consisted of a spin-echo pulse sequence with multiecho acquisition to collect images at seeral parallel echo times, the authors explained.

该研究报者解释，云母标本成像协议包括自旋脉冲串和在几个平行时间段收集多影像。