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First the related condition which causes the non symmetric thrust flight and the control method under the circumstances of the non symmetric thrust flight are stated, the relationship between the non symmetric thrust flight and the minimum control speed is pointed out.

首先 ,叙述了发生不对称推力飞行的条件,在不对称推力飞行条件下的操纵方法,以及和最小操纵速度的关系。

From optical BINOL, the chiral phosphoryl azide compound was prepared. Its application as chiral auxiliaries in the stereoselective ring-opening of meso-epoxides was examined. No obvious asymmetric induction, however, was observed.

从光学活性的联二萘酚出发合成得到了手性磷叠氮化合物,并将其应用于环氧化合物的不对称开环反应中,考察了它作为手性辅助剂在该反应中的不对称诱导效果。

Maximum expected voltage unbalance at PCC during normal operation of the grid: Voltage unbalance defined as relative value of negative phase voltage component, expressed in percentage of positive voltage component.

电网正常运行电网接入点预计的最大电压不对称:不对称电压的定义为负相电压分量的相对值,用正电压分量的百分数来表示。

Synchronously rotating with the source voltage vector,the harmonics and reactive currents can be detected easily and rapidly.

目前对无功、不对称和谐波电流的检测和计算方法大多是针对三相对称正弦电源系统。

In this chapter, the MPV reactions catalyzed by alkoxy dysprosium is used to the reduction of prochiral ketones. The chiral alkoxy catalyst was prepared by chiral binaphthol and Dy 〓.

最后还将烷氧基镝催化下的MPV还原反应应用于潜手性酮的不对称还原,利用光学活性的联萘酚制备了手性烷氧基催化剂,结果表明该催化剂可有效地催化潜手性酮的不对称MPV还原。

The first part of this dissertation described a new effective method for asymmetric synthesis of,α,α-disubstituted amino acids from the asymmetric Strecker reaction products of aldehydes.

在本论文的第一部分,我们开发了一条以醛为原料,以不对称Strecker反应和不对称烷基化为关键步骤的合成α,α双取代氨基酸的有效方法,并对其立体选择性结果进行了机理探讨。

The synthesis of chiral pharmaceuticals is a hot issue of the development in pharmaceutical in the world,asymmetric hydrogenization of which is the successful technology in the chiral synthesis .

手性药物的合成是目前全球药物开发研究的热点,而不对称氢化是手性合成中最成熟的技术。讨论了不对称氢化技术在镇痛类、抗生素类、抗菌类、抗忧郁类以及维生素类等9类手性药物合成中的实际应用

In this paper, with domain analysis method for reactive power in nonsinusoidal, the formulas of apparent power and power factor both in nonsinusoidal and asymmetric conditions are describled.

本文从单相非正弦波形下无功功率的时域分析定义出发,导出三相不对称时视在功率的公式,从而获得非正弦波形又不对称下三相功率因数的计算公式。

The aluminium powder has been used to reduce titanium tetrachloride to generate the low valent titanium reagent which can induce the reductive coupling of aldehydes and ketones to form the corresponding pinacol s.

以价廉易得的铝粉还原四氯化钛制得低价钛,将其用于醛酮还原偶联,合成了6种片呐醇,其中对称片呐醇4种,不对称片呐醇2种。

The bilateral asymmetry in force exerted on the scoliotic spine may be the cause.

双侧的不对称改变引起的肌肉组织力量的不对称可能是侧凸的原因之一。

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And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时,论述了一体化管理体系构建中的几个主要问题,包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。

If you're huffing and puffing at any point during the run, slow down and make sure you can take deep breathes.

如果你任何时候在跑步过程中气喘如牛,降低速度并且确保你能够深呼吸。