All I had to do was jack the car up and put on the spare.

1、

Let me say it once and for all.

让我只此一次.

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2、

I'll do laundry for you -- this once -- but I'll not make your dinner. Sorry.

我会替你洗衣服的 -- 只此一次 -- 但我不替你做晚餐, 对不起!

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3、

What time do you leave the house in the morning?

你早晨几点出门去上班？

《牛津高阶英汉双解词典》

4、

The cast must all be on set by 7 in the morning.

全体演员必须在早上7点钟到场。

《牛津高阶英汉双解词典》

5、

It's such a performance getting the children off to school in the morning.

早上打发孩子上学可要忙乱一阵子呢。

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6、

Then I went to my thesis defense

然后我去了论文答辩

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7、

Just as he was busy preparing his thesis defense graduate student Li Wei ( pseudonym) received confirmation that he was HIV positive.

正在研究生李伟忙着准备其论文答辩之时，他收到确认结果，自己艾滋病病毒测试呈阳性。

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8、

Thesis defense is scheduled in the first week of June. Reviews shall be made according to the regulations on reviews.

论文答辩时间定在六月的第一个星期。论文不需要答辩，以评审制通过评审。

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9、

Thesis defense mostly uses positive politeness and negative politeness.

论文答辩多采用积极礼貌策略和消极礼貌策略。

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10、

Video Technology Application in Graduation Thesis Defense

视频技术在毕业论文答辩中的应用

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11、

Through analyzing the performance parameters of superfine powder wormgear classifier, the velocity distribution of gas stream flowing in the classifier was built up, and the particle diameter formula for wormgear classification was derived.

研究了超微粉涡轮分级机性能分析的数学模型，建立了涡轮分级流场速度分布模型，推导了涡轮分级颗粒粒径公式。

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12、

In the end, the superiority of plane worm with variable tooth thickness traction machine was proofed by the efficiency and load capacity test to the cylindrical wormgear and plane worm with variable tooth thickness traction.

在此基础上，通过圆柱蜗杆传动曳引机和变齿厚平面蜗轮传动曳引机的效率及承载能力试验，证明变齿厚蜗轮传动及其曳引机的优越性。

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13、

Application of Backlash Adjustable Plane Wormgear with Variable Tooth Thickness Enveloping Worm Transmission in the Traction Machine for Lifts

侧隙可调式变齿厚平面蜗轮包络环面蜗杆传动在电梯曳引机上的应用

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14、

Moreover, taking the motion law into account and with the Boolean subtraction calculation of the solids of worm and wormgear at every meshing position, the solid modeling of hourglass worm parts is realized.

考虑运动规律，对每个啮合位置的蜗杆实体与蜗轮轮齿实体进行布尔减运算，进而实现环面蜗杆零件的实体建模。

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15、

Character-based CAD/ CAE/ CAPP System Research of Wormgear

基于特征的蜗杆传动CAD/CAE/CAPP集成系统的研究

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16、

The Study on the Meshing Theory of Toroidal Planet Wormgear Drive with Ball Tooth

球形齿超环面行星蜗杆传动的啮合理论研究

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17、

Analysis of Performance Parameters of Superfine Powder Wormgear Classifier

超微粉涡轮分级机性能参数分析

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18、

A study on the design of wormgear hob for the worm gearing with controllable second order contact characteristics

可控二级啮合特性的蜗轮滚刀设计

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19、

By this method, both the productivity of wormgear honning and the accuracy of wormgear can be increased owing to the application of the high honning speed and the powerful brake moment.

这种工艺采用较大的珩磨速度和较大的制动力矩，既提高了生产率，又保证了高精度。

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20、

Research on cutting transition surface of the wormgear by hob

滚刀切制蜗轮过渡曲面

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