螺旋桨

Cr13 and Cr18Ni8 series stainless steels would be used for ship parts in the past,the former being poorly resistant to seawater and the latter being insufficient in the strength.In view of this fact,the seriated forrite-austenite dual steels with high strength and good resistance to seawater have been developed.

以前C，r13和Cr18Ni8系列不锈钢被用于制造船体零件，前者在海水中的耐蚀性不良，后者强度性能不够高，于是发展了既具有高强度又耐海水腐蚀的铁素体-奥氏体系列双相不锈钢，用于制造高速船的船体钢板、锻件(舵轴、舵柱、舵梢、尾轴、中间轴等)和铸件(螺旋桨、阀体、耐蚀叶轮等)。

Relying on the several years experience and technology power of CNC four axis, the factory has become the specialized one manufacturing rotary products like cylinder cam, type cam, abnormal cam, rolling cutter, circle cutter, propeller, impeller, screw groove, adjustable screw groove, closed curve groove etc.

凭借多年CNC四轴加工精湛的生产技术力量，专业生产加工回转类产品，如圆柱凸轮、平面凸轮、异形凸轮、滚切刀、圆切刀、螺旋桨、叶轮、螺旋沟槽、变距螺旋沟槽、封闭曲线沟槽等，并可加工箱体类精密的空间定位孔、面等。

This article summarizes worldwide application and development of compound material in naval ship s,including application in the machinery and other equipment,superstructure,deck,bulkhead,advanced mast system,propeller,thrust shafting,rudder,pipeline,pump and valve for large naval ship s including frigate,destroyer an.

该文综述了近年来复合材料在海军舰艇上的国外应用现状及进展，包括在大型军舰如护卫舰、驱逐舰和航空母舰上的机械及其他装备，以及上层建筑、甲板、舰舱壁、先进的桅杆系统、螺旋桨、推进轴系、方向舵、管道、泵、阀等上的应用。

The circulation, consumption and reproduction of the trilogy have not only testified to its historical significance and literariness, but also invested it with new meanings.

该三部曲的流通、消费与再生产不仅验证了其历史意义及文学性，而切还赋予它以新的意义。

If he thought that he could buy me off, he would be wrong.

如果他认为他可以收买我，那他就大错特错了。