火焰的高超声速速度缩短了粉末与火焰之间的相互作用时间，而火焰也促使了颗粒增长和涂层分解的低温限制。
The hypersonic velocity of the flame shortens the time of interaction between the powder and flame, while the low temperature of flame limits the grain growth and decomposition of coating.
分析了粉末注射成形中粉末—粘结剂两相流动中粒子（颗粒与分子）碰撞的情况。
The circs of collision of particle(granule and molecule)in the powder and binding two-phase flow for powder injection molding is studied.
介绍两种低压电器新的限流技术，粉末颗粒分断技术与液体金属限流器。
The two kinds of new technologies for current limiter: powder based breaking technology and liquid metal current limiter were introduced.
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