在内燃机中组合式活塞结构应用广泛，例如钢顶铝裙活塞、内外组合活塞等。
Composite pistons of various types are widely used in internal combustion engines, such as steel crown and aluminium skirt type, inner and outer pistons type, and so on.
探讨了用超声波技术对运用机车柴油机钢顶铝裙活塞裙部裂损进行提前预防的措施和方法。
The precautionary measures to prevent skirt from fracturing, by means of ultrasonic flaw detection technology, are discussed.
本文以机车柴油机钢顶铝裙组合活塞为对象，建立组合活塞钢顶铝裙连接螺栓-活塞销的四体接触计算模型。
This paper introduced a four-body contact model of steel crown-the nodular cast-iron skirt-piston pin-connecting bolt for the steel-crown aluminum-skirt composite piston of locomotive diesel engines.
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