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- RUNGE LENZ VECTOR AND RAISING AND LOWERING OPERATORS Runge-Lenz矢量与升降算子
- Four Kinds of Raising and Lowering Operators of the Landau System Landau体系的四类升降算子
- Four kinds of raising and lowering operators of three-dimensional isotropic harmonic oscillators with spin-orbit coupling 含自旋轨道耦合的三维各向同性谐振子的四类升降算符
- raising and lowering operators 升降算符
- An arrangement of links and a hook in a fireplace for raising and lowering a kettle. 锅钩一种用链环和一个弯钩组成的壁炉装置，用来提升或放下水壶
- All mast raising and lowering functions are controlled from the operator's cab. 支架的所有升降功能都是从操作室控制的。
- These, in their turn, control the raising and lowering of the heddles. 这些纸卡会依卡上的小孔次序来控制钩针的上下运动。
- A device that raises and lowers the warp threads on a loom. 排成纵向在织布机上将纵向丝线升高或降低的装置
- A system of ropes and blocks for raising and lowering weights of rigging and pulleys for applying tension. 索具:由升降索上升降重物的绳索、铁块和用来施加压力的滑轮所组成的一套系统。
- He heard the different proposals, often raising and lowering his head in agreement, and saying, @okay,@ meaning @It is so. 酋长听着他们发表不同的意见，频频点头以示同意，一边说“okay”， 意思是：“是这样”。
- Flies The area directly over the stage of a theater, containing overhead lights, drop curtains, and equipment for raising and lowering sets. flies舞台的顶棚:剧院舞台的正上方,包括头顶的灯光、幕布和用于升高或降低布景的器械。
- The area directly over the stage of a theater, containing overhead lights, drop curtains, and equipment for raising and lowering sets. 舞台的顶棚剧院舞台的正上方，包括头顶的灯光、幕布和用于升高或降低布景的器械
- The motions of the two bodies cause the bulge to sweep around the globe, raising and lowering the sea level in a regular cycle. 两个物体的相对运动，使得海潮轮流发生在地球各地，而同一地点的海平面则以规律的周期涨落。
- Check for deviations that may indicate burned-out or runaway heaters by slightly raising and lowering the controller set point to see if it turns power on and off. 通过稍稍调高及降低控制器设定值，检查能指示烧坏或加热器失控的偏差值，来确定它是否能够保持开启和关闭电源。
- Inside, Robin could see across the yard the open recess in the wall, above the entrance arch, in which was the gear for raising and lowering the drawbridge and portcullis. 这六十人中有一打的人早被箭射死或受伤，箭是从罗宾的人准确地射出致命的一箭。
- This project is very interesting due to its composition of removable parts connected to a toother wheel-worm screw mechanism that allows the raising and lowering of a stairway. 这个计划是非常有趣的.;它的可移动的零件的构成;被连接到可以上升和降低楼梯的齿轮子螺丝机制。
- But his dread also that she might have diphtheria made him tell me to go on， go on though he himself was almost fainting， while the mother moved back and forth behind us raising and lowering her hands in an agony of apprehension. 可是，因为又担心她真会患上白喉，尽管他自己就快昏到了，他又告诉我继续，继续，而她的母亲在我们的身后走来走去，忧愁万分地抖着双手。
- But his dread also that she might have diphtheria made him tell me to go on, go on though he himself was almost fainting, while the mother moved back and forth behind us raising and lowering her hands in an agony of apprehension. 可是，因为又担心她真会患上白喉，尽管他自己就快昏到了，他又告诉我继续，继续，而她的母亲在我们的身后走来走去，忧愁万分地抖着双手。
- It is used mainly for raising and lowering materials in sloping tunnels, coalmines, metal mines and nonmetal mines. In other situations, it may serve to assist transportation equipment. 主要用于煤矿、金属矿、非金属矿的倾斜巷道和小型竖井作提升，下放物料之用，也可在其它场合作辅助运输设备用。
- The realization methods of soft-touch control, without toss tail control and constant tension control during raising and lowering of electric Iooper of hot strip finishing mill are introduced. 介绍了带钢热连轧机精轧机组电动活套在升、落套控制过程中的软接触控制，落套无甩尾控制和恒张力控制的实现方法。该综合控制思想已在某中宽带轧机上成功应用。
