样本

In sampling, we choose a small number of items which we think are typical of the whole and examine the sample.

在采时, 我们选择少量我们认为是代表整体东西, 并对这个进行研究。

When the sample is placed inside, the special gusseted bottom flattens out, allowing the bag to stand up on its own.

当放在里面，特别插角使袋子底部变平，袋子便直立了。

Working on a comparable timescale, SIM should provide positional information for a subsample of faint stars, thereby probing the most tenuous star streams.

在此同时，SIM应能提供黯淡恒星次级位置资讯，从而侦测稀薄恒星流。

Program goals include teaching the sharks to swim into a shallow stretcher and remain calm for medical exams, morphometrics, and eventually diagnostic sampling.

计划包括训练鲸鲨游入近水面运送架，并在医护检查、体形测量和抽取化验期间保持安静。

Listeria species in environmental samples from the food plant were detected by 3M Petrifilm by identifying the 210 typical colonies and 70 nontypical colonies from 112 environmental samples.

摘要共采集112个环境，挑取了210个典型菌落，70个非典型菌落进行鉴定，评估3M测试片对食品加工环境中李斯特菌检测能力。