So, what evidence of a liquid water environment did we find in rock samples taking from the oldest rocks on Earth?
那么,在从地球上最古老的岩石中提取的岩石样本中,我们发现了什么液态水环境的证据呢?
If we had rock samples to study, we'd know whether these small craters were formed by impacts during the final stages of planetary formation, or if they resulted from later meteor showers.
如果我们有岩石样本用于研究,我们就能知道,这些小陨石坑是在行星形成的最后阶段被撞击形成的,还是后来的流星雨造成的。
They obtained rock samples from the moon.
他们从月球获得岩石的样品。
The astronauts obtained rock samples from the moon.
宇航员们从月球上获得岩石样品。
Collect Rocks Every few hundred feet, scientists collect rock samples for study.
科学家按几百英尺的间隔收集岩石样本用于研究。
They collected some rock samples to take back to Earth for further research.
他们搜集了所有的岩石样本,带回地球作进一步的研究。
They collected many rock samples to take back to Earth for further research.
他们收集许多岩石样本带回地球作进一步的研究。
They collected many rock samples to take back to Earth for further research.
他们采集了许多岩石标本,带回地球作进一步研究。
An improved method of measuring effective porosity of rock samples is presented.
提出了一种测定岩样有效孔隙度的方法。
Look at these rock samples on the table, they are all fault rocks of different type.
请看一看桌上这些岩石样品,它们都是不同类型的断层岩。
A total of 382 kg of rock samples were returned to the Earth by the Apollo and Luna programs.
总共382公斤的岩石样品返回地球和月球的阿波罗计划。
Then the reason that the strength of the rock samples is reduced because of sampling is analysed.
同时对由于取样造成的岩样强度降低的原因进行了分析。
Gopher appreciated the "bag" for toting around his rock samples. "never had one big enough before! "
谷佛用袜子来装他的石头标本。“我以前从来没有过这么大的‘袋子’呢!”
The results of fluid displacement experiments in real rock samples agree with the theoretical analysis.
通过对实际岩石样品进行流体驱替实验,发现实验结果与理论分析相一致。
In the paper, technique of uncoated rock samples and its operations for the SEM measurement are discussed.
本文着重讨论了岩石样品的扫描电镜不镀膜定位观察技术及其使用方法。
The uniaxial compression tests under different ways of loading were performed on a variety of rock samples.
用几种不同加载方式对岩石样品进行了单轴压力实验。
Such rock samples are called cores, and it is possible to analyze them by both geological and geochemical methods.
这种岩石样品叫做岩心。可用地质的和地球化学的方法对岩心加以分析。
The astronauts returned with soil and rock samples, which NASA also cites as physical evidence of our presence on the moon.
宇航员从月球上带回了土壤和岩石样品,NASA也把这些作为我们确实登上月球的物证。
In this paper, the conditions of rupture 'and rapture precursors of rock samples under different stress paths have been studied.
本文研究了在不同的应力途径下岩石破坏的条件和破裂的前兆。
Based on unloading tests of rock samples, the deformation, parameters and fracture features of rocks under unloading are studied.
基于岩石试件的卸荷试验,研究卸荷条件下岩石的变形、参数及破裂特征。
The experiments on decomposing phosphate rock and concentrated phosphate rock samples by alkali fusion in microwave oven were done.
尝试用微波炉代替马弗炉进行磷矿石和磷精矿试样的碱熔分解。
The image galleries display dozens of photos of rock samples. As of the date of publication, only the first lab file was available.
图片库展示了许多岩石样本的图片。到公布之日为止,只有第一个实验文件可用。
The observational result of crack fracture form for rock samples with close crack under unloading after the peak compression shear load.
介绍了对含闭合裂缝岩石试件在达到峰值压剪荷载时卸荷的裂缝断裂形态观察结果。
It has been found that the flow behavior of water through rock samples with retained polymer molecules in it does not follow Darcy's law.
在滞留有聚合物的岩心中,水的流动规律不符合达西定律。
At the same time, with some rock samples from Shandong province, sound wave experiments and uniaxial cyclic loading tests are carried out.
同时采用声波实验和单轴循环加载实验相结合的方法,以山东某矿勘探区岩体为试验对象,对取自该矿区的岩样进行了实验。
For all rock samples, stress increased almost linearly with strain up to the maximum and then dropped rapidly, indicating brittle feature.
所有岩石都表现出在峰值强度之前应力与应变几乎呈线性关系,而峰值强度之后应力急剧下降的脆性特征。
Measuring results of sonic velocities of rock samples subjected to shock produced by underground nuclear explosion are given in this Paper.
本文给出了地下核爆炸爆后围岩样品声速测量结果。
Rock density damage increment with ct can be obtained by subtracting ct number of the undisturbed rock samples from that of the loaded rock samples.
通过对岩石试样在加载前后测得的CT数作差值运算,可获得岩石试样在不同应力阶段的CT密度损伤增量。
Rock density damage increment with ct can be obtained by subtracting ct number of the undisturbed rock samples from that of the loaded rock samples.
通过对岩石试样在加载前后测得的CT数作差值运算,可获得岩石试样在不同应力阶段的CT密度损伤增量。
应用推荐