Teachers often chaperon their classes on field trips.

在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, 只好在外露宿数月。

A farmer works outdoors.

农民在外干活。

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

只有六百头欧还在外生存，它们几乎全部集中在——或者一半集中在吧，取决于我们如何定义“”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外设置一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.

只有六百头欧洲野牛还在野外生存，它们部集中在里——或者一半集中在里吧，于我们如何定义“里”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.

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，它们几集中在里——或者一半集中在里，决于我们如何定义“里”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.

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, 只好露宿数月。

A farmer works outdoors.

农民干活。

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,得到频散曲线,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, 只好在野露宿数月。

A farmer works outdoors.

农民在野干活。

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野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波,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野外设置一个观测台阵记录微动信号,然从观测到的微动信号中提取面波,得到面波的频散曲线,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, 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.

只有六百头欧洲野野外生存，它们几乎全部集中——或者一半集中吧，取决于我们如何定“”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。