The mine drainage centrifugal pump operating in the piping with high resistance have smaller fluorite and lower efficiency .

矿山排水离心泵在阻力偏高管网中工作时，其流量偏小，效率低。

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But the lower efficiency of thin films means they need more space: more efficient cells can squeeze more electricity out of a given area.

低效率意味需要更多的光板面积：高效率即表示在同样的面积里可以“挤”出更多的电力。

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The traditional manual method of seal verification is restricted by subjective experience and external factors with lower efficiency and unavoidable mistakes.

利用传统的手工方法核对印鉴的真伪易受人为因素和各种客观条件的制约，不仅效率低，而且失误也在所难免。

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So it's that the irreversible efficiency is lower than the reversible one.

所以不可逆过程的效率,小于可逆过程的效率。

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And those with lower sleep efficiency, the amount of time they spent in bed asleep, were at higher risk too.

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Some silicon solar cell makers have been able to hit 21% on their best days, but doing so consistently and in high volumes are far more difficult. (Panel efficiency is usually a bit lower than cell efficiency).

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Ranked in a lower tier for efficiency, I might get 97 cents for every dollar I was expecting from Medicare.

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