piston ring material 活塞环材料 ; 材料
single piston pump material suppplied 供料 ; 供料泵单柱塞供料量
Material piston 胶料活塞
Material piston rod 热处理钢
heterogeneous material piston 功能梯度材料活塞
piston-pushing material centrifuge 活塞推料离心机
functional gradient material piston 功能梯度材料活塞
Alloy ZL108 is a main brand of cast aluminum alloy used for power engine piston material, it is not needed to contain titanium according to the national standard now.
ZL 108合金是目前国内发动机活塞材料使用的一种主要铸造铝合金牌号，我国现行标准中zl108并不含钛。
Hypereutectic Al-Si alloy which has small proportion, low coefficient of thermal expansion, good wear resistance and dimensional stability is an ideal piston material.
过共晶铝硅合金比重小、热膨胀系数低、耐磨性和体积稳定性好，是理想的活塞材料。
Because of particularity of structure and material, the piston must be measured by the non - contact method. but, at present there isn ' t mature technique.
由于活塞结构和材料的特殊性，对于它的检测只能采用非接触测量的方法，而目前尚没有成熟的技术。
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