useful power

基本解釋

If even a small proportion of this wasted heat could be converted to useful power, it would be a good thing.
如果把浪費(fèi)掉的很小的一部分熱能轉(zhuǎn)換爲(wèi)有用的能量，這都是件好事。
Pattern matching is another feature found in many, if not most, functional languages, and offers some useful power.
模式匹配是許多（但不是大多數(shù)）函數(shù)語(yǔ)言中可以找到的另一個(gè)特性，它提供了一些有用的功能。
Based on this study , the formula for calculation of the useful power of a vibration mill is established by use of dynamic theory, and is verified by the experiment.
在此基礎(chǔ)上，運(yùn)用動(dòng)力學(xué)有關(guān)理論，建立了振動(dòng)磨機(jī)有用功率計(jì)算的表達(dá)式，竝通過(guò)試騐進(jìn)行騐証。

Similarly, attaching thermoelectric devices to the flues of power plants could generate more useful power.
ECONOMIST: Thermoelectrics
Consider that for every BTU of coal or natural gas burned in a combustion turbine only 35 percent of that is converted into useful power.
FORBES: Recycling Wasted Heat and Power Could Clear the Air
Such technology could be useful in power-sucking data centers and handheld devices with limited batter life, such as smartphone sand tablets, obviously.
FORBES: Intel Demonstrates Solar-Powered Processor