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Print and recorded promotional materials of SparrowHawk APV Gyroplanes.

松雀鹰旋翼机的印刷及影视介绍。

A seven year location experiment in the condition of wheat-corn rotation of Lou soil in Guanzhong plain was conducted. The effects of the subsoiling, rotary tillage and no-tillage on the distributions of micro-aggregates and the contents of organic carbon and nitrogen in soil micro-aggregates were studied.

以7年不同耕作的定位试验为研究对象,研究了深松、旋耕、免耕等保护性耕作对关中塿土小麦–玉米轮作条件下微团聚体分布以及微团聚体中有机碳和全氮含量的影响。

After every day of flight, it is also a good practice to check ball joints on the rotor heads and rotating portion of the swash plate. Replace overly loose ball links immediately.

每天飞完后,也最好检查一下旋翼头和十字盘上的球头和球头扣,抬松的球头扣应立即换掉。

Background Recently , most of the authors consider that muscle injection is the cause of the gluteal muscle contracture , and release and excise the fibrous contracture tract of gluteal muscle (gluteus maximus , gluteus midius , gluteus minimus) can improve the adduction and internal rotation of hip joint.

背景:目前大部分作者认为臀肌挛缩症是臀部肌肉注射引起并与患者遗传因素有关的一种疾病,治疗方法多采用臀部切口,对臀大肌、臀中肌、臀小肌中的挛缩组织进行松解,以改善患侧髋关节的内收与内旋。

In comparison to similar helicopters, the SparrowHawk APV has superior performance and much lower acquisition and operation costs.

相较於同级直升机,松雀鹰型旋翼机更为安全,性能较高,并且营运费用远低於直升机。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。