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The three types of reconstructed embryos(reconstructed embryo of goat-rabbit, goat-bovine and goat-goat) were produced respectively by nuclear transfer using goat ear firbroblast cells as donors and rabbit, bovine and goat ooctyes as recipients, and the factors of cytoplast environments influencing cloned embryo development in vitro, cytoplast effect in nuclear transfer, the methods of transferring cloned embryo and the effects of pregnancy factor on implantation of cloned embryo were studied in this experiment, in order to supply basis for solving the difficulty of implantation of inter-species cloned embryo in recipient and improving the efficiency of cloning.

本试验以波尔山羊耳成纤维细胞为供体，分别以牛、羊、兔的卵母细胞为受体进行体细胞核移植，构建了山羊-兔、山羊-牛和山羊-山羊三种重构胚。研究了不同的胞质环境对重构胚体外发育的影响与核移植中的胞质效应，并对异种克隆胚胎采用了去透明带移植和配种后再移植的方法，探讨移植方法和妊娠因子对异种克隆胚胎在受体动物体内发育的影响，旨在为解决异种克隆胚移植不易着床发育的难题和为提高动物克隆效率提供理论依据。

I firmly believe that no difficulty can daunt the valiant chinese people.

我坚信，任何困难都难不倒英雄的中国人民！

She was the last to go to rest, the first to rise, and no difficulty could daunt her.

她比所有的人晚安息，比所有的人早起床，而且任何困难都挡不住她。

Once we bear this motto in mind, no difficulty can daunt us.

只要我们记住了这句口号，任何困难都不能使我们畏缩！

The fact of the disaster relief showed beyond doubt that no difficulty can daunt the chinese people.

灾难营救的事实无疑表明：没有困难能吓倒中国人民。

Once we master it, no material difficulty can daunt us

我们学会了这一条，我们就对一切物质困难都不怕了。

The difficulty did not daunt him.

那种困难吓不倒他。

And we, as a nation, must have courage to overcome difficulty, confidence to win and dauntless spirit to work hard and prevail.

我们这个民族在历史上灾难太深重了，这就培育了我们的忧患意识、生存意志和追求和平与发展的愿望。

Since had own starship, the kind of person robot then starts in the summit sky execution patrol mission, moreover the arrogance is more rampant, has created the very great difficulty to the humanity police power's further bombing, was good jumbles together in the hybrid area senior official with 黒 area senior official black Germany graceful this time has brought the massive long-distance weapon delivery, therefore then stay up till dawn carried on the rug type saturation bombing to the Moon crater base, caused in the crater the kind of person robot not to dare to appear easily, also their flight vehicle after shot down the dozens of frames does not have to remove into in the base to hide.

自从有了自己的星际飞行器，类人机器人便开始在山顶上空执行巡逻任务，而且气焰更加嚣张起来，对人类警察部队的进一步轰炸造成了很大难度，好在混血区长官混为一谈和黒区长官黑德曼这次又带来了大量远程发射武器，于是便日夜不停地对月球环形山基地进行地毯式饱和轰炸，使环形山内类人机器人不敢轻易露头，它们的飞行器在被击落数十架之后也不得撤入基地内隐蔽起来。

The car reserving aid systm is also called "parking auxiliary unit ",it is the automobile safe parking auxiliary unit,which can use sound or a more direct demonstration to show the driver the obstacle situation around.Thus relieve the difficulty of looking ahead and back when parking or starting vehicles,and help the drive to eliminate the dead angle of the field of vision and the flaw of sight.

倒车雷达全称叫"倒车防撞雷达"，也叫"泊车辅助装置"，是汽车泊车安全辅助装置，能以声音或者更为直观的显示告知驾驶员周围障碍物的情况，解除了驾驶员泊车和启动车俩时前后左右探视所引起的困扰，并帮助驾驶员扫除视野的死角和视线模糊的缺陷。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。