理论质量包括卡箍、端管、密封橡胶圈、螺栓和螺母的质量。

Theoretical weight will be consisted of the weight of the clamps, end rings, sealing rubber rings, bolts and nuts.

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爆炸的恒星其质量接近形成黑洞的理论质量极限，即太阳质量的20倍左右。

The star that exploded that year was just on the edge of the theoretical mass limit for forming black holes, about 20 times the mass of the sun.

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虽然消费者在卫生纸上的花费减少了，但从理论来看，他们至少对于纸的质量仍然很挑剔。

While consumers are spending less on toilet paper, they remain fussy in theory at least when it comes to paper quality.

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It turns out, it's part of a big picture and all of general relativity is based on this one great equivalence of two quantities which are very different attributes.

已经证明的是,这确实只是冰山一角,广义相对论的所有理论,都是建立在这两个质量相等的基础之上,而这两个质量的属性有很大差异

耶鲁公开课 - 基础物理课程节选