Teachers often chaperon their classes on field trips.

在野外郊游时老师常看护着班上的学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既无工作又无钱, 只好在野外露宿数月。

A farmer works outdoors.

农民在野外干活。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

只有六百头欧洲野牛还在野外生存，它全部集中在这里——或者一半集中在这里吧，这我如何定义“这里”这个词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

微动勘探法是通过在野外设置一个观测台阵记录微动信号,然后从观测到的微动信号中提面波,得到面波的频散曲线,最后用频散曲线反演地质结构。

Teachers often chaperon their classes on field trips.

郊游时老师常看护着班上的学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既无工作又无钱, 只好露宿数月。

A farmer works outdoors.

农民活。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

只有六百头欧洲牛还生存，它们几乎全部集中这里——或者一半集中这里吧，这取决于我们如何定义“这里”这个词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

微动勘探法是设置一个观测台阵记录微动信号,然后从观测到的微动信号中提取面波,得到面波的频散曲线,最后用频散曲线反演地质结构。

Teachers often chaperon their classes on field trips.

在游时老师常看护着班上的学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既无工作又无钱, 只好在露宿数月。

A farmer works outdoors.

农民在干活。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

只有六百头欧洲牛还在生存，它们几乎全部集中在这里——或者一半集中在这里吧，这取决于我们如何定义“这里”这个词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

微动勘探法是通过在设置一个观测台阵记录微动信号,然后从观测的微动信号中提取,得的频散曲线,最后用频散曲线反演地质结构。

Teachers often chaperon their classes on field trips.

野外郊游时老师常看护着班上的学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既无工作又无钱, 野外露宿数月。

A farmer works outdoors.

农民野外干活。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

有六百头欧洲野牛还野外生存，它们几乎全部集中这里——或者一半集中这里吧，这取决于我们如何定义“这里”这个词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

微动勘探法是通过野外设置一个观测台微动信号,然后从观测到的微动信号中提取面波,得到面波的频散曲线,最后用频散曲线反演地质结构。

Teachers often chaperon their classes on field trips.

野外郊游时老师常看护着班上学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既无工作又无钱, 只好野外露宿数月。

A farmer works outdoors.

农民野外干活。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

只有六百头欧洲野牛还野外生存，它们几乎全部集中这里——或者一半集中这里吧，这取决于我们如何定义“这里”这个词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

微动勘探法是通过野外设置一个观测台阵记录微动信号,然后从观测到微动信号中提取面波,得到面波曲线,最后用曲线反演地质结构。

Teachers often chaperon their classes on field trips.

在野外郊游时老师常看护着班上的学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既无工作又无钱, 只好在野外露宿数月。

A farmer works outdoors.

农民在野外干活。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

只有六百头欧洲野牛还在野外生存，它们几乎全部中在这——中在这吧，这取决于我们如何定义“这”这个词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

微动勘探法是通过在野外设置个观测台阵记录微动信号,然后从观测到的微动信号中提取面波,得到面波的频散曲线,最后用频散曲线反演地质结构。

Teachers often chaperon their classes on field trips.

在野外郊游常看护着班上的学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既无工作又无钱, 只好在野外露宿数月。

A farmer works outdoors.

农民在野外干活。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

只有六百头欧洲野牛还在野外生存，它们几乎全部集中在这里——或者一半集中在这里吧，这决于我们如何定义“这里”这个词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

微动勘探法是通过在野外设置一个观测台阵记录微动信号,然后从观测到的微动信号中提,得到的频散曲线,最后用频散曲线反演地质结构。

Teachers often chaperon their classes on field trips.

在野外郊游时老师常看护着班上的学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既无工作又无钱, 只好在野外露宿数月。

A farmer works outdoors.

农民在野外干活。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

只有六百头欧洲野牛还在野外生存，乎全部集中在这里——或者一半集中在这里吧，这取如何定义“这里”这个词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

微动勘探法是通过在野外设置一个观测台阵记录微动信号,然后从观测到的微动信号中提取面波,得到面波的频散曲线,最后用频散曲线反演地质结构。

Teachers often chaperon their classes on field trips.

在野外郊游时老师常看护着班上的学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既无工作又无钱, 只好在野外露宿数月。

A farmer works outdoors.

农民在野外干活。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

只有六百欧野牛还在野外生存，它们几乎全部集中在这里——或者一半集中在这里吧，这取决于我们如何定义“这里”这词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

动勘探法是通过在野外设置一观测台阵记录动信号,然后从观测到的动信号中提取面波,得到面波的频散曲线,最后用频散曲线反演地质结构。