critical mass

常见例句

Arethe molecules in the prep chamber still at critical mass?
这些分子在准备室会以临界物质的形式存在?
There also need to be enough fissionable atoms about for the neutrons to bumpinto—in other words, a critical mass.
同时还需要足够多的、可裂变的原子核用于中子进行撞击，换句话说，需要一个临界质量。
As in other types of business, the region's local champions lack scale in a world where critical mass seems to matter ever more.
就像在其它行业中那样，该地区本地公司的佼佼者缺乏规模，而这个世界中临界质量看来更加重要了。

Tullo believes that Apple (which builds proprietary services) has the critical mass to make it work.
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Are merchants in sectors where Groupon develops critical mass essentially yielding their customer relationships to Groupon?
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Can Pogo get the critical mass of planes and customers to make that 1, 500-hour assumption work?
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