动物体型越大，其体表体积比越低；躯体每增加一盎司的重量，所能散发热量的表面就成比例减少。

The bigger the animal is, the lower its surface-to-volume ratio; for every ounce of body mass, there is proportionately less surface through which heat can escape.

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由于立方体卫星体积小、重量轻，将它们送入地球轨道的成本比传统通信或GPS卫星要低得多。

Because they're so small and light, it costs much less to get a CubeSat into Earth's orbit than a traditional communications or GPS satellite.

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在正已烷中酶反应最适水含量为0.06（重量体积百分比）％。

The optimal water contents of enzyme reaction in hexcone was 0.06(W/V)%.

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