The optimization rule on the layout and serration of the compact range was referred to, then the optimization algorithm was performed and the result was given.

1、

A research on cracked failures of fir-tree serration in aeroengine turbine disc

航空发动机涡轮盘榫齿裂纹故障研究

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2、

The percentage of sharply circle, sparsely serration and triangular extension Z-lines were 25.0%, 58.3% and 16.7% respectively in the control group.

正常对照组仅有锐利环型、宽齿型、三角延伸型，分别占25.0%、58.3%和16.7%。

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3、

Tighten the internal serration screw on the exhaust sprocket.

拧紧排气链轮上的内角螺钉。

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4、

Using the wrong combination will result in a bad connection between crankset and bottom bracket and may lead to a damaged serration of your crankset.

如果硬要这样配合使用，牙盘和中轴之间结合的会很糟糕，可能会导致牙盘的花键损坏。

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5、

A study of reason of first firtree serration cracking failure at turbine blade

涡轮叶片枞树形榫头第一榫槽裂纹故障原因的探讨

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6、

After testing the growth of four kinds of Morchella, We knew that in a limited period, mycelial growth graph showed serration while cultural time extended.

对其生长曲线进行测定，结果表明，在一定的时间内，随着培养时间的延长，4种羊肚菌的菌丝生长曲线呈现锯齿状特点。

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7、

Why did Ukrainian air traffic controllers allow the plane to deviate from the regular route to the north, towards the anti-terrorist operation zone?

乌克兰空管部门为何允许马航客机偏离常规路线，向北飞到反恐行动区？

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8、

Although they are known for their long migrations, grey whales do not normally stray from their regular routes.

虽然大家都知道它们有一个很长的迁移，但是灰鲸还是非正常地偏离了他们的常规路线。

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9、

The research and development of super-fine fiber is the mainstream tendency in differential polyester filament. The normal process ( POY-DTY) takes more advantage than others, and has enough economic profit.

超细纤维的研制与发展是差别化涤纶长丝的一个主流方向，使用POY-DTY常规路线加工比其它生产方式具备多方面的优势，存在丰厚的经济利益空间。

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10、

But there also quite a few people who would like to work in a small-sized enterprises suitable for their own development rather than choose the causal career developing way.

但还有很大一部分人不愿走常规路线，他们更钟情于适合自身发展的小型企业。

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11、

The points for attention in designing the serration axle are pointed out.

指出了渐开线螺旋花键轴几何尺寸设计时应注意的问题。

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12、

Sea , land and air transportation is very convenient, and communications network facilities is quite perfect.

海陆空交通运输非常便捷, 通讯网络设施完善齐全.

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13、

It acts as an agency of international marine and air transportation of import and export cargoes.

承办海运、空运进出口货物的国际运输代理业务.

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14、

Any substance which presents a danger during air transportation that is not covered by other classes.

任何物质在运输途中,呈现其他类危险货品所未涵盖之危险.

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15、

Application of EDI in foreign trade, customs and air transportation at the end of 1990.

1990年底,中国的电子商务首先从应用EDI( 电子数据交换)开始,主要集中在外贸、海关及航空运输等领域.

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16、

International logistics: The transportation act for, sea-air transportation, the price of air freight of the advantage.

国际物流: 海运代理, 海空联运, 优势的空运价格.

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17、

Sea, land and air transportation go hand in hand, water, electricity, roads, communication facilities improved.

海、陆、空立体交通齐头并进, 水、电、路、通讯等设施不断完善.

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18、

It is very convenient for the road, rail and water and air transportation.

我厂处于广东珠三角发达城市广州,公路, 铁路,海运,航空交通十分便捷.

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19、

With the development of modern air transportation, more and more controllers are needed continuously.

随着航空运输业的不断发展, 迫切需要更多的管制员.

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20、

Water, land as well as air transportation are well developed now.

现在这里的水陆空交通都比较发达.

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