... 最优环空返速 optimum annular velocity 最优磨损量 optimum wear 最优喷嘴直径 optimum nozzle diameter ...
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For optimum wear life, centre distance between two sprockets should normally be within the range 30 to 50 times the chain pitch.
为了获得最佳磨损寿命，2个链轮间的中心距通常应是链条节距的30至50倍。
Wear characteristics of segments and conditions resulting in the optimum segment appearances are also analyzed.
分析高效锯切条件下节块的磨损特点和形成最佳表面状态的条件。
Optimum application of electrodeposition surface engineering techniques can considerably decrease the wear and corrosion loss, and hence effectively prolong the serving life of components.
利用电沉积表面工程技术可以有效地降低材料的磨损与腐蚀，延长工件使用寿命。
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