介绍了内燃机点火技术的研究进展，阐述了内燃机脉冲电晕放电点火新技术所涉及的点火能量、点火效率、燃烧时间和相关化学反应等问题。
The ignition energy, efficiency, burning time and main chemical reactions of the pulsed corona discharge ignition(PCD) used on internal combustion engine are discussed in detail.
利用磨削液界面化学反应膜降低摩擦系数同时软化表面层，提高磨削效率是一个全新的研究方向。
Utilizing interfacial chemical reaction membrane between grinding fluid and Si_3N_4 ceramics can reduce friction coefficients, soften surface layers and improve grinding efficiency.
利用磨削液界面化学反应膜降低摩擦系数同时软化表面层，提高磨削效率是一个全新的研究方向。
Utilizing interfacial chemical reaction membrane between grinding fluid and Si_3N_4 ceramics can reduce friction coefficients, soften surface layers and improve grinding efficiency.
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