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- helical propulsion 螺旋推进
- This aircraft works by jet propulsion. 这架飞机是喷气推进的。
- The helical spring can no longer be used. 盘簧不能再用了。
- The propulsion system consists of five F-1 engines. 推进系统包括五个F-1发动机。
- No propulsion occurs at this time. 此时无推进力产生。
- The polynucleotide chain is helical. 多核苷酸键是螺旋形的。
- S: I am operating astern propulsion. 我船正在倒车。
- Technical requirement on propulsion shafting align. 内河船舶推进轴系校中技术要求。
- What type of fuel is used for main propulsion? 主推进装置使用何种燃油?
- Aircraft works by jet propulsion. 这架飞机是喷气推进的。
- The helical gear has become worked down over the years. 斜齿轮因为年久而磨损了。
- The milling machine is often employed to cutspur and helical gears. 铣床常用来铣制正齿轮和斜齿轮。
- Adduction of the upper arm to maximize forward propulsion. 内收上臂以产生最大的向前推进力。
- Virions may be polyhedral or helical and vary greatly in size. 其形状有多面体形和螺旋形，其体积大小多变。
- The liquids employed for rocket propulsion are called propergols. 用于火箭发动机的液体称为液体火箭推进剂。
- Helical circular mixture ,fast and uniform stirring. 螺旋循环搅拌使得原料混合更加均匀、快速。
- In the long-side position there is no propulsion being effected. 在长的身体姿势时并无推进力产生。
- Helical rotor is one of the key parts of high consistency repulper. 螺旋转子是高浓碎浆机的关键部件。
- The propulsion of a rocket requires a great amount of energy. 推进火箭需要很大的能量。
- The SARS viral nucleocapsid is tubular with a helical symmetry. 沙士病毒的核壳呈管形，属螺旋对称型。
