往复

The paper is mainly focused on the friction process between piston ring andcylinder when piston moving back and forth with cylinder.

本文主要研究内燃机活塞环-缸套摩擦副作往复运动时的摩擦过程特性。

The variation of friction force between piston ring and cylinder liner,which may exert great influence on the engine operation, is very complicated because of the reciprocation of piston assembly.

摘 要：由于往复运动特性，工作状态中活塞环缸套的动态摩擦力非常复杂，而且对发动机的工作状况有重要影响。

For example, before the slice force curve each step of cylinder is completed, force of inertia,top side gas force,shaft side gas force are required, per curve will possess 36 calculation spots at least.

尤其动力计算中采用非传统的解析法进行往复惯性力、盖侧气体力、轴侧气体力、切向力曲线的绘制使得压缩机切向力曲线的合成变得非常简便，计算过程解决的

They related his annual resurrection to the budding and blooming of grapevines every year.

葡萄树的一年又一年的发芽开花与欧里西斯的往复重生密切相关。

Diamond saw blade, abrasive disc, T.C.T. circular saw blade, jig saw blade, reciprocating saw blade, hand hack saw blade, drill bit, hole saw, router bit, rotary carbide burr and power tools accessories.

上海恒辉工具有限公司 Shanghai Starcraft Tools Company Limited 2C42(W2C42)金刚石锯片，树脂砂轮片，硬质合金锯片，曲线锯，往复锯，各类手工锯条，各类钻头，各种材料的孔锯，木工铣刀，硬质合金旋转锉，电动工具附件组套等。

The FRP tube has a very slippery surface, with roughness rate only 0.009, which is considered as perfect slippery Tube for hydraulic. In daily usage, the wall of the tube of steel, iron or concrete are often corrosive and become rough, while the cross-winding tube can keep a clean and slippery wall surface.

玻璃钢管道内表面相当光滑，一般表面粗糙率可达0.009，几乎可以认为是&水力学光滑管&，在实际运行中，钢管、铸铁管、水泥管等的内表面，经常发生局部腐蚀，变得越来越粗糙，而往复交叉缠绕玻璃钢管道始终保持着新生管表面光滑状态。

Using harmonic analysis of the calculated tidal level and current, the distributions of co-tidal lines for K1, O1, M2 and S2 are obtained, whose maximum amplitudes can reach 112 cm, 96 cm, 50 cm and 15 cm, respectively. The distribution of the maximum probable current velocities in Qinzhou Bay is basically the same as that of isobaths, and the maximum probable current velocity can reach 200cms^(-1) nearby the Longmen Harbor. It is concluded by the analysis of K1 and M2 tidal current ellipses that the flow is rotating at the mouth of the bay, while its retilinear flow is in the nearshore area, estuaries and channels. The distributions of the major axes are closely related to the topography, and the rotation directions of both constituents are clockwise.

根据模拟结果计算得到了较以往更为精细的钦州湾K1、O1、M2、S2分潮的同潮图，潮汐最大振幅分别为112、96、50和15cm；最大可能流速的分布基本与等深线一致，龙门港附近最大可能潮流流速可达200cms^(-1)；钦州湾的外湾口海域开阔，一般为旋转流，近岸海区及水道、河口等多为往复流，K1和M2分潮流椭圆长轴的分布与地形密切相关，旋转方向均为顺时针，流速极值出现在龙门港区。

Shanghai Automotive Co., Ltd-giant is located in Shanghai Minhang Economic Development Zone specialized in the manufacture and sale of Qibaoshebei, Lung Mun water knife reciprocating washing machine equipment company.

上海辉巨汽车用品有限公司是坐落于上海闵行经济开发园区一家专业制造销售汽保设备，龙门水刀往复洗车机设备的企业。

Shanghai Hui-mechanical hardware factory is located in Shanghai Minhang Economic Development Zone specialized in the manufacture and sale of Qibaoshebei, Lung Mun water knife reciprocating washing machine equipment company.

上海仁飞机械五金厂是坐落于上海闵行经济开发园区一家专业制造销售汽保设备，龙门水刀往复洗车机设备的企业。

The billows, torn and lashed by the wind, encompass him hideously; the tossings of the abyss bear him away; all the tongues of water dash over his head; a populace of waves spits upon him; confused openings half devour him; every time that he sinks, he catches glimpses of precipices filled with night; frightful and unknown vegetations seize him, knot about his feet, draw him to them; he is conscious that he is becoming an abyss, that he forms part of the foam; the waves toss him from one to another; he drinks in the bitterness; the cowardly ocean attacks him furiously, to drown him; the enormity plays with his agony.

迎风崩裂的波涛狠狠地包围着他，波峰波谷带着他辗转上下，一缕缕的白练飞腾在他的头上，一阵阵的狂澜向他喷唾，巨浪的口把他吞没殆半；他每次下沉，都隐约看见那黑暗的深渊，一些未曾见过的奇怪植物捉住他，缠着他的脚，把他拉向它们那里去；他觉得自己也成了旋涡，也成了泡沫的一部分，波涛把他往复抛掷；他喝着苦汁，无情的海水前仆后继，定要把他淹没，浩瀚的泽国拿他的垂死挣扎来取乐。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。