圆周的

Why?" I questioned in puzzle ment . He smiled and drew a circle on a piece of paper, then made a dot in its circumference and asked me,"Which way is the shortest to reach the symmetrical dot in the circumference from this point?""Diameter , I responded , and with this answer I suddenly realized that I was lucky enough to live a diametrical life , namely, a very smooth life . Since I exposed myself to the research in materials, I have been aspir ing to become a scientist, and God has blessed me with a diametrical life without any waste of time or life.

我问父亲，父亲微笑着拿起手中的圆规在白纸上画了一个圆，在圆周上点下一点，问我道："在同一个圆上的一点到达与之相对称的另一点，什么样的方式是最快的呢""直径"，当答案从我的嘴中脱口而出之时，我猛然间也明白了我的幸运就在于我的直径人生，从我进入物理的领域到今日希望成为一名杰出研究者的理想，上帝让我幸运的获得了走这条直径的机会，没有浪费时间和生命。

The coupling could make the washing machine change the work state between washing mode and dehydrating mode. Synchromesh gear that is located on the flange section and connection gear that is located at the external circle surface of the down side of the flange section is formed on coupling. The compression spring is installed on the top of the coupling and effects to the coupling to make it always moving downward. The feature is diameter of the terminal section of the compression spring is smaller that of the compression spring installation groove on the flange of the coupling.

其包括联轴器和压缩弹簧，联轴器可使洗衣机在洗涤模式和脱水模式间转换，其上形成有同步齿轮和连接齿轮，同步齿轮位于凸缘部上并在与联轴器限制件的齿轮相啮合时能使洗衣机进行洗涤；连接齿轮位于凸缘部下侧的外圆周面上并在与外连接器上的齿轮相啮合时能使洗衣机进行脱水；压缩弹簧安装在联轴器的上端并作用于联轴器，使其始终向下移动，其特征在于：所述的压缩弹簧的终端部直径较联轴器凸缘部上的压缩弹簧安装槽直径小。

Part of… an important part of … to the music during his lifetime turn into… have different opinions about… on the other hand because of … either…or… with music on take turns doing sth. as often as possible get along with… stand for… hear of ….

in the open air in the beauty of the country Unit 12 ……的一部分……的一个重要的部分合着音乐在他的一生中进入；使变成对……有不同的看法另一方面由于……要么……要么……放着音乐轮流做某事尽可能多地……进展；与……相处代表……听说……闯入；破门而入环顾圆周经过过去的二十年越来越流行不再再一次等等在五十年代认为……是重要的转向；求助……对……生气充满……对……有很好的看法取笑……。

Lubrication for timing chain is supplied at two points; by a feed from the front the camshaft bearing into the periphery of the camshaft chain wheel and also by oil fed through the hollow shaft on which the timing chain jockey pulley is mounted arid thence through holes in the circumference of the jockey pulley.

给时间安排链的润滑在二点被供应；被饲养从前面凸轮轴举止到凸轮轴链轮子的外围以及藉着油喂过了空的桥在哪一个之上时间安排链赛马的骑师滑车被展开干燥的从那时起完成的洞在赛马的骑师滑车的圆周中。

The convertible lawnmower includes a cutter housing having a discharge opening, an engine mount centrally positioned on the cutter housing, a prime mover supported on the engine mount, a mulching blade coupled to the prime mover to rotate in a blade circle within the cutter housing, a mounting ring rotatably mounted in the cutter housing, and a plate connected to the mounting ring.

该可转换的割草机包括一个带有卸料口的刀具外壳、一个中心定位在刀具外壳上的发动机架、一个安装在发动机架上的原动机、一个连接在原动机上以便在刀具外壳中的刀片圆周内围绕一轴线旋转的覆盖刀片、一个可旋转地安装在刀具外壳中的装配环和一个连接在装配环上的板。

In order to study the intake air flow characteristics in four-valve diesel engines, in this dissertation hot-wire anemometer and PIV twodimension instantaneous measuring technique are used. Extensive experimental study on two intake valve exit flow fields and longitudinal section flow field in cylinder are performed for different type of diesel engines. Great researching progress have been made on the interaction between two intake ports, and the formation process of in-cylinder swirl and flow field structure of cross and longitudinal section for four valve diesel engines. These results are presented in China for the first time and without such kind of research work reported abroad as detailed and deepgoing as this dissertation. The author designs and makes a set of hot wire measuring velocity device to measure the velocity distribution around the intake valve annulus and the cross section flow field in cylinder.

为了研究四气门柴油机进气过程中气体流动的变化规律，本文利用热线测速和PIV二维瞬态测速技术，对四气门柴油机两进气门出口全圆周流速场和缸内横、纵剖面的气体流动流场进行了大量的试验研究，在四气门柴油机两进气道之间相互影响的变化规律，缸内涡流的形成过程及缸内横、纵剖面流场结构等方面取得了重大的研究进展，这一研究工作在国内尚属首次，在国外也未见有如此全面、深入的研究报道。

A rotary separator of vacuum cleaner is composed of a dust collecting container, an opening-closing cover, and a separating plate dividing the dust collecting container into upper space and lower dust collecting chamber.

要約 本发明属于一种真空吸尘器用的旋转分离装置，包括含有异物的空气流入其内形成螺旋流的集尘箱，可开闭集尘箱的盖，集尘箱内设有分离板，分离板与集尘箱的下侧内周面严密地结合，在分离板的下部形成集尘部；分离板是中心开有开口部的圆锥状，从上面的圆周向下倾斜形成引导部，引导部的最下端有引导异物流入到上述集尘部的流入孔。

Analyzing the calculating process of belt conveyor with high angle theoretically, starting from its theoretic calculate the cross sectional area of materials and peripheral force, shaft power of drum, power of motor, using point by point method to get the resultant strain of every drum and torsion of driving drum, calculating the maximum strain and the maximum reverse stopping torque, to give the support on theory for using belt conveyor with super-long distance, high angle under the coal mine.

本文针对长运距、大倾角、高强度带式输送机设计过程中存在的问题，从四个方面对大倾角带式输送机进行分析研究：从理论上解析大倾角带式输送机的计算过程，从大倾角带式输送机的理论入手，详细计算物料的横截面面积、圆周力、滚筒轴功率和电机功率，利用逐点计算法计算各个滚筒的合张力以及传动滚筒的扭距，计算出胶带的最大张力和最大逆止力矩，给长运距、大倾角皮带机在煤矿井下的使用给予理论上的支持。

Study an analysis according to what to rupturing the relation of tenacity and other reachs material crackle to develop a process, we see not hard be worth in Dn tall and below the case that is put in circumferential stress, the change of the finishing of high-speed steel and the deepness of surface of high-speed steel sclerosis with the small amount that contain carbon has important sense.

根据对断裂韧性和其它的关系及材料裂纹发展过程的研究分析，我们不难看出在dn值高且存在圆周应力的情况下，高速钢的表面处理和含碳量低的高速钢硬化表面深度的变化具有重要的意义。

We have one other pond just like this, White Pond, in Nine Acre Corner, about two and a half miles westerly; but, though I am acquainted with most of the ponds within a dozen miles of this centre I do not know a third of this pure and well-like character.

我们还有另一个这样的湖，在九亩角那里的白湖，在偏西两英里半之处；可是以这里为中心的十二英里半径的圆周之内，虽然还有许多的湖沼是我熟悉的，我却找不出第三个湖有这样的纯洁得如同井水的特性。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了