... 样本概率空间 sample probability space 样本构成 composition of sample 样本估计 sample estimation ...
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chemical composition of the sample 试样的化学成分
·2,447,543篇论文数据，部分数据来源于NoteExpress
That instrument will determine the composition of the soil sample.
FORBES: Curiosity Gets Its First Taste Of Martian Soil
That sample could potentially teach scientists a great deal about the composition and history of Mars.
FORBES: Curiosity Confirms Rock Sample Found From Beneath Mars
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