音标：['speri,lait] ；

n. [矿]砷铂矿

n. An arsenide of platinum occuring in grains and minute
isometric crystals of tin-white color. It is found near Sudbury,
Ontario Canada, and is the only known compound of platinum occuring in
nature.

Numbers 民数记26

26After the plague the Lord said to Moses and Eleazar son of Aaron, the priest, 2Take a census of the whole Israelite community by families-all those twenty years old or more who are able to serve in the army of Israel. 3So on the plains of Moab by t

发表于:2018-12-30 / 阅读(191) / 评论(0)

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By Mike O'Sullivan Palmdale, California 06 September 2006 Engineers in the California desert are testing a new communications platform that blends modern electronics with old technology. Developers say a helium-filled balloon carrying high-tech equi

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万物简史第306期:地下的烈火(14)

Because we can't see into the Earth, we have to use other techniques, which mostly involve reading waves as they travel through the interior. 我们无法看到地球的深处，因此不得不使用别的方法，主要包括观察波在地球内部的

发表于:2019-02-25 / 阅读(160) / 评论(0)

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学英语单词

analog telephone transmission

anterior crus

apertura superior canaliculi tympanici

capital adjustment account

chondroadenoma