Laser as a heating source of high energy density of accurate control, can carry out multiple-sort strengthening treatment to the metal surface.

激光作为一种精密可控的高能量密度的热源，可对金属表面进行多种强化处理。

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The main energy source of greenhouse is solar radiation. Defining optimum lighting surface of the greenhouse is the key of greenhouse structural design of greenhouse.

温室的主要能量来源是太阳辐射，确定出最佳的温室前屋面以获得更多的太阳辐射是温室结构设计的关键。

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An energy source in the form of an ultrasonic transducer (6) has as a curved energy transmission surface (7).

超声换能器(6)形式的能量源具有弯曲的能量传递表面(7)。

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This energy source remains largely untapped, though, simmering either too far below the surface to reach, or isolated from water that could carry it up.

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However, earlier this month, researchers from Durham University's Energy Institute reported that fracking was not a significant source of tremors that can be felt on the surface, compared to many other human activities such as mining or filling reservoirs with water.

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