1.互换,交换;酬答,报答 (with)
2.【机】往复,来回
1.to have the same feelings toward someone that they have for you
2.to do the same thing for someone that they have done for you
1.Coatings have been used to a limited extent, primarily in specialized applications, such as the plungers in reciprocating pumps.
涂层的应用范围有限，最初是被应用在特殊领域，如往复泵的活塞。
2.Pick up the CR13VBY and it appears to be a conventional reciprocating saw. But, pull the trigger and there is nothing conventional about it.
所推出的CR13VBY带有传统往复式锯的特点，但是，拉动扳机之后就与传统的一点都不一样。
3.The present invention is the combination of the principles of a reciprocating piston engine and a revolving cylinder type compressor.
本发明是往复式活塞机与转缸式压缩机原理的结合。
4.Mobile cathode: the mechanical device makes the plated with its poles together as a product of the periodic reciprocating motion cathode.
移动阴极：采用机械装置使被镀制件与极杠一起作周期性往复运动的阴极。
5.The rotating-reciprocating mechanism can directly move a plane display directly to produce a three-dimensional image.
旋转往复机构可直接移动一平面显示器产生立体三维图像。
6.A reciprocating piston, the inhalation and from a liquid, known as a working cycle; this pump known as the single-action pump.
活塞往复一次，各吸入和排出一次液体，称为一个工作循环；这种泵称为单动泵。
7.Reciprocating pump power of steam-side and side-pump should be left out of the location of the piston and rod.
蒸汽往复泵的动力侧和泵侧应留有抽出活塞和拉杆的位置。
8.In this paper the dynamic optimum design was carried out for the crankshaft of a horizontal reciprocating emulsion pump with three pistons.
本文对矿用卧式三柱塞往复乳化液泵曲轴进行了动态优化设计研究。
9.Device used to move automatic guns in a vertical plane. A reversing or reciprocating drive system provides motion.
喷枪在垂直面自动移动的装置，一个回动的或往复式的提供移动的装置。
10.Eccentric and rod mechanism: Arrangement of mechanical parts used to obtain a reciprocating straight-line motion from a rotating shaft.
偏心轮连杆机构：用于从回转轴得到往复直线运动的一种机构。