On the basis of the theory of energy conversion, the direct and indirect methods for recovering engine's residual heat are introduced in this paper.

本文以能量转换理论为基础，阐述了内燃机余热利用的两种方式——间接利用和直接利用。

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A novel contactless energy bi-directional push mode was developed to realize direct conversion between energy transmitter and receiver.

提出一种非接触电能双向推送模式，用于完成电能发射端与接收端的双向直接转换。

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The so-called linear motor is the use of electromagnetic theory, electrical energy direct conversion of kinetic energy linear motion equipment.

所谓直线电动机就是利用电磁作用原理，将电能直接转换直线运动动能的设备。

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"I'd rather spend the money on the infrastructure, on direct investment, on energy conversion and other kinds of things much more directly and much more rapidly and much more certainly create a real job, " said Sen.

CNN: Key Democrats blast Obama stimulus plan