The Influence of Rotation Rate on the Stellar Structure and Evolution;

自轉(zhuǎn)速率對恒星結(jié)構(gòu)與演化的影響

On the base of the corporate formation hypothesis of the planets,this paper premises that all the planets begin with the prograde rotation in the early stage of the solar system.

金星和水星有著與眾不同的長周期自轉(zhuǎn),金星的緩慢逆向自轉(zhuǎn)尤其引人注目,曾有多種假說試圖解釋其起源。

The path of discus flight and the effects of the throw velocity/angle,spin and wind conditions on discus flight are discussed in this paper,considering the aerodynamic force on the discus.

從鐵餅在空氣中飛行所受到的氣動(dòng)力出發(fā),闡述鐵餅飛行的軌跡和鐵餅出手時(shí)的速度、角度、自轉(zhuǎn)角速度和風(fēng)作用對成績的影響。

The technic of autorotation is one of the most important factors to safe landing.

單發(fā)直升機(jī)遭遇發(fā)動(dòng)機(jī)失效后,只能采用自轉(zhuǎn)飛行的方式著陸,著陸安全與否很大程度地取決于自轉(zhuǎn)的操縱規(guī)律。

Gliding descent in autorotation is a maneuver used by helicopter pilots in case of engine failure.

當(dāng)直升機(jī)的發(fā)動(dòng)機(jī)失效后，自轉(zhuǎn)下滑就成為駕駛員實(shí)現(xiàn)安全著陸的唯一有效手段，這需要熟練的駕駛技術(shù)。

The autorotation characteristics of helicopter are directly related to its safety and reliability.

直升機(jī)自轉(zhuǎn)特性的好壞,直接關(guān)系到該型機(jī)安全性和可靠性。

Performance appraisal of a new self-diverting acid with viscoelasticity and surface activity;

新型粘彈性表面活性自轉(zhuǎn)向酸的研制及性能評價(jià)