必要时

Exhaust brake valve is an auxiliary brake, is a necessary supplement to vehicle service brake; it is to use engine as an air compressor to generate brake torque to decelerate the vehicle; normally it is assembled inside of exhaust pipe, and close the valve to clog the exhaust duct as necessary to reach braking.

排气制动阀是一个辅助制动器，是汽车行车制动器的必要补充，是将发动机作一个空气压缩机使用而产生制动力矩从而对汽车产生减速作用，一般安装在排气管中，在需要减速时关闭阀门以阻塞排气通道而达到制动的效果。

In the design aspect, besides maintained the smooth line of cheongsam,clothing design masters retained its rigorous structure, do not have any nonessential accessories such as belt, button-fastening loop, appendix bag and so on; in craft aspect,abbreviating the shoulder part, useing the decoration flower and embroidery, all these things enhances the skin texture effect;structurally, not only adopting the pipa front, the pleasant lapel, the low lapel, the hich collar, the low collar,even on collar, but also involving its sisters art ,such as drawing, to make decorations for cheongsam.Those cheongsam on which drown flowers, birds, and makeups in Peking opera,are exotic and elegant. Graft the drawing onto the clothing design and improve the originally structure which is insufficiently comfortable,the new style cheongsam become a marvellous achivement on the international clothing stage Moreover, the production technology innovation, the technical process improvement, the new material use, all of these has poured the new blood into the Chinese dress development.

在款式方面，除了保持旗袍流畅的线条外，服装大师们在设计剪裁时，保留旗袍结构严谨，线条流畅，没有任何不必要的带，袢，袋等附件的特点；在工艺上采用收肩，饰花，穿珠片，刺绣等手法，加强肌理效果，在构造上，采用琵琶襟，如意襟，低襟，高领，低领，无领等，同时又把绘画等姊妹艺术也作为旗袍装饰的手段，那些画有花，鸟，京剧脸谱等图案的旗袍，不仅设计新巧，而且风格典雅，富有韵味，把服装和绘画融为一体，打破了原来穿着不够舒服的构造，使之一展新容，成为国际服装舞台上的奇葩。

Zhang asked the teacher's family driver, sent a large 100/car, sending the bridge 80/vehicle; there are going to be great comrades bearing in mind that the attention of ferry time, you can call the ferry, he told us 5:30 also said that, while the Teacher of the house and we say too late, not 4:30, and we want to live in it After dinner under the path along the cliff, no need to please tour guide, the tour guide told you what a tiger jump Stone money to take photographs and the like, but in fact it does not have to go after!

张询问教师的家庭司机，发出了一个大型100/car ，发送的桥梁80/vehicle ；将有很大的同志铭记注意的渡轮时，您可以调用的渡轮，他告诉我们5： 30日也说，虽然教师的房子和我们说为时已晚，而不是4：30 ，我们希望生活在它）晚餐后的路径下沿悬崖，没有必要请导游，导游告诉你什么虎跳石钱拍照等，但实际上它并没有去后！

Because, there is difference in cultural habits and color orientations, native speakers of English and those of Chinese will choose different color terms to refer to the same things, thus in translation it is necessary to substitute different color terms in the target language for the ones in the source language.

因为文化习惯和色彩的适应中是有不同的。说英语的当地人和那些中国人在指同一个色彩时，会选择不同的色彩术语。因此，在翻译过程中，用目标语言中的不同的颜色术语来代替源语言是必要的。

All these might result from poor communication between doctors and patients. To build good trust between doctors and patients and enable correct judgments related to informed consent rule in criminal cases, I thereby do a research on issues of informed consent rule.

为能使医师与病患间建立良好之信赖关系，并使刑事实务上面对与「告知后同意法则」有关之医疗诉讼时能作出正确之判断，则有必要就「告知后同意法则」之相关议题加以研究介绍。

We may also disclose account information when we have reason to believe that disclosing this information is necessary to identify, contact or bring legal action against someone who may be violating our Terms of Service or to protect the safety of our users and the Public.

我们也可能会公开帐户信息时，我们有理由相信，透露这一信息是必要的，以查明，接触或提起诉讼的人谁可能是违反我们的服务条款或保护的安全，我们的用户和公众。

We may also disclose account information when we have reason to believe that disclosing this information is necessary to identify, contact or bring legal action against someone who may be violating our Terms of Service or to protect the safety of our users and the Public.

我们还可以透露的帐户信息时，我们有理由相信，透露这一信息是必要的，以查明，接触或采取法律行动反对某人可能是谁违反了我们的服务条款或保护的安全我们的用户及公众的意见。

The dog clutch, of course, provided an instant release when machining under power (and many owners made up simple automatic knock-off devices to allow exact turning up to a shoulder) but a second reason behind its fitting was a practical difficulty unmentioned by the makers: as owners quickly discovered, when screwcutting with the help of the headstock clutch it was necessary for the carriage to be wound back manually using the wheel at the tailstock-end of the leadscrew whilst the changewheels remained in mesh.

狗离合器，当然，提供了一个即时释放下加工时功率（和很多业主提出了简单的自动敲小康装置，使转向精确到肩膀），但第二个原因是其拟合实际困难未提及的制造商：作为业主很快发现，当screwcutting的帮助下启闭离合器有必要的运输必须使用手动伤口回到车轮在尾座年底的丝杠，而留在changewheels网格。

When it rains, it will be raining on all sides of the house. It is not necessary to check every door.

下雨时，不管是房子的哪个方向都是雨，根本没有必要笨得去一一查看每道门。

When changing diaphragms in most drivers the new diaphragm may not be 100 % concentric to the old one, and the only way to align it in the magnetic gap is by removing the iron pole from the driver and loosening the screws holding the center pole piece, then and only then the diaphragm can be aligned with the center pole piece and rubbing or touching of the voice coil with the pole pieces in the gap is avoided, this may happen at certain frequencies only, producing a very harsh sound, even passing a static or a dc diaphragm test , therefore the claim that the diaphragms are replaceable in the field is not in many cases true, only when the driver has adjustable screw and dowel locating pin the alignment is possible without getting inside the driver and when alignment of the diaphragm is needed, the plate holding the pole pieces and assembly needs removal, by doing so the pole piece may be well set and aligned but the magnetic field will weaken significantly by such a procedure and solving one problem leads to another one, in this case the driver needs to be re magnetized in order to perform well.

当改变隔膜在大多数司机的新膜片不得100 ％同心旧的，只有这样，才能使其在磁场的差距是通过消除铁柱从司机和松动的螺丝中心柱举行一块，然后才是膈肌可配合中心极片和摩擦或触摸的音圈与极片的差距是可以避免的，可能会遇到这种情况只有在特定的频率，产生了非常严厉的声音，甚至通过一个静态或直流隔膜测试，因此声称隔膜的更换在外地不是在许多情况下，真实的，只有当该名司机已可调螺丝和销子定位销调整是有可能没有得到内部的驱动器和调整时，膈肌是必要的，举行的板极件和大会需要搬迁，这样做极可能是一块很好设置和调整，但磁场将削弱显着这样的程序和解决的一个问题导致另一次，在这种情况下，司机必须重新磁化，以表现良好。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷