A sort of novel dispersant by the reaction of PIBSA with aminosalicylic acid is used for low or medium-speed diesel engines, with evident effect on solving problem of "black paint".
PIBSA与胺基水杨酸反应合成的一种新型分散剂，应用到中低速柴油机中，对解决“黑漆”现象效果明显；
This paper describes main reinforcing methods for crankshafts of medium -bored high - speed diesel engines.
本文概述了中等缸径高速柴油机曲轴的主要强化方法。
The materials have been widely used to make valve seats for most medium-and high-speed diesel engines at home and abroad.
近来随着引进国外柴油机新技术和新型柴油机，气门座材料趋于含碳量、铬量更高，甚至于采用高碳、高铬多元合金的镍基材料。
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