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But from the point of view of the relativity theory, time as well as space is changed by passing from one c.s. to another, and the Lorentz transformation considers the transformation properties of the four-dimensional time-space continuum of our four-dimensional world of events.

但是从相对论的观点看来，时间和空间从一个坐标系过渡到另一个坐标系时都是要改变的，而洛伦兹转换就是考察事件的四维世界的四维时空连续区的转换性质的。

The control tissues were negative.Four 45-day-old SPF pigs infected with PRRSV BJ-4 isolate and four stillborn fetuses were deteced with the probe.Positive hybridization signals could be detected in lung,tonsil,lymph nodes,thymus gland,brain,etc.

应用探针对人工感染PRRSV北京分离株BJ-4的4头SPF猪及4例死胎的组织进行了检测，均可在肺门淋巴结、胸腺、脑、扁桃体等组织中发现阳性杂交信号。

The waveform of differential current in each data window is divided into four parts averagely according to time, and the area-ratio among the four parts can be used to distinguish magnetizing inrush from internal fault current.

该算法以工频一周波为数据窗长，将数据窗内的差流波形按时间均分为4份，根据各份面积之间的比值来识别励磁涌流和内部故障电流。

Standard blends of Madeira are made mainly from the local grape varietal Tinta Negra Mole, whereas higher quality "reserve" and "vintage" Madeiras tend to be made from one of the four noble grapes traditionally used to make Madeiras—Sercial, Verdelho, Bual, and Malmsey (listed in ascending order of sweetness). All four of these noble grapes were destroyed by phylloxera at the end of the 19th century and are slowly being replanted on the island at considerable expense.

标准马德拉白葡萄酒主要采用当地的Tinta Negra Mole葡萄酿造而成；而品质较高的"珍藏"及"年份"级马德拉葡萄酒往往会采用四种传统用于酿造马德拉葡萄酒的贵族葡萄之一：Sercial葡萄、Verdelho葡萄、Bual葡萄或 Malmsey葡萄。19世纪末，岛上的四种贵族葡萄都遭受了根瘤蚜虫的彻底破坏，后来付出不小代价后，才重新在岛上种植。

"They've met four times this year, and world number one Martina Hingis has defeated American Monica Seles on all four occasions."

世界1号选手玛蒂娜·辛吉斯和美国选手莫妮卡·塞莱斯今年共交锋4次，结果辛吉斯4次都击败了塞莱斯。

"They've met four times this year, and world number one Martina Hingis has defeated American Monica Seles on all four occasion s."

世界1号选手玛蒂娜·辛吉斯和美国选手莫妮卡·塞莱斯今年共交锋4次，结果辛吉斯4次都击败了塞莱斯。

In the primary talented person aspect, we cooperation with various universities, colleges and institutes, for instance, Chengdu University of Electronic Science and Technology of China, Southwest Jiaotong University, Chengdu Information engineering Institute, Chengdu Professional Technology Institute and so on, these school's student use the winter and summer vacation time to go to our platform to practice, sends them to each software outsourcing enterprise inside to do participates project practice, certainly this is the two-way job choice, both sides satisfies may pass practises, the university's four years in our platform practice's university student, have been our observation of primary mass data and the raise object, after their four year graduation, the outstanding graduate platform recommends to the Employer, this is we raises Low-level talented person.

在初级人才方面，我们与各大专院校合作，比如成都电子科技大学、西南交通大学、成都信息工程学院、成都职业技术学院等，这些学校的学生利用寒暑假的时间到我们平台实习，再把他们派到各个软件外包企业里面去做参加项目的实践，当然这个是双向选择，双方都满意的就可以过去实习，大学四年一直在我们平台实习的大学生，是我们重点观察和培养的对象，等他们四年毕业后，优秀的毕业生平台推荐给用人单位，这个是我们培养的低端人才。

Caused by the brake disc brake on back wheel should not have four kinds of spaces possible: First, the foot brake 5 exhaust inlets, high pressure gas instinct Pai people the atmosphere, caused by gas-liquid master cylinder should not spring back to place, cause the system Oil will move the brake disc brake wheel cylinder piston top dead can not come back to places; are gas-liquid two disc brake master cylinder to the tubing plug, resulting in brake wheel cylinder piston can not come back to places; are three master cylinder of gas-liquid Can not spring back to their own spaces, brake fluid under high pressure gas, liquid should not return to the master cylinder reservoir chamber, resulting in brake wheel cylinder piston can not come back to places; are four wheel disc brake piston brake system because of moving fluid dirty or rusty Pistons Can not Back-bit card dead.

造成盘式制动器上的制动分泵不能回位有4种可能：一是脚制动阀5的排气口堵塞，高压气体本能排人大气，造成气液总泵的弹簧不能回位，导致制动油将盘式制动器的制动分泵活塞顶死而不能回位；二是气液总泵至盘式制动器的油管堵塞，造成制动分泵活塞不能回位；三是气液总泵的弹簧本身不能回位，制动液在高压气体作用下，不能回到气液总泵的储油室，从而造成制动分泵活塞不能回位；四是盘式制动器制动分泵活塞由于制动液太脏或活塞生锈卡死而不能回位。

This article mainly take Austin's four novels 〈Arrogant with Prejudice〉,〈Reason And Emotio〉,〈Loves Masurium〉 and 〈Advising〉four heroine Elizabeth, love Masurium, Anne, Egyptian Li promises as an object, analyzes their self-education and the self-perfection course.

本文主要以奥斯丁的四部长篇小说《傲慢与偏见》、《理智与情感》、《爱玛》和《劝导》中的四个女主人公伊丽莎白、爱玛、安妮、埃丽诺为对象，来分析她们自我教育与自我完善的历程。

Four days later, Sophie went into heat and mated for four days.

四天后，苏菲进入热量和交配四天。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。