1.
powerless ascent
无动力(推进)上升 (火箭)被动段上升
2.
Study on Shifting without Driving Force Interrupt Based on Double-Motor Hybrid Electric Bus
双电机混合动力客车换档无动力中断的研究
3.
Incapable of movement.
不能动的，无行动能力的
4.
brushless d.c. torque motor
无刷直流力矩电动机
5.
idle roller conveyor
无驱动力辊筒运输机
6.
The bird feebly beat its wings.
这鸟无力地拍动着翅膀。
7.
"the blades may not move, or movement may be weak."
动刀片有不动作或旋转无力的可能性
8.
Labor shift and economic growth in Wuxi,Jiangsu Province;
劳动力流动与江苏无锡市的经济增长
9.
It tends to be unrelated to physical exertion and unresponsive to nitroglycerin.
疼痛往往与体力活动无关，对硝酸甘油也无反应。
10.
Research on Flight Dynamic Analysis and Flight Simulation Research for Unmanned Aerial Vehicle Without Empennage;
无尾式无人机飞行动力学分析及飞行仿真研究
11.
Principle and Research Status of Slotless Lorentz Self-Bearing Motor
无槽洛仑兹力无轴承电动机原理和研究现状
12.
We were pinned down by enemy fire.
敌方火力使我们无法移动。
13.
inability to control the flow of urine and involuntary urination.
无力控制尿液流动、不知不觉的撒尿。
14.
classical hydrodynamics
无粘性不可压缩流体动力学
15.
My legs refused to walk away,
我的双腿怎么也无力提动，
16.
To fly without propulsion.Used of an aircraft.
滑翔指飞机，无需推动力的飞行
17.
The beating of his heart grew fainter.
他的心脏跳动越来越无力了。
18.
To move without further use of propelling power.
顺势滑下无需进一步使用推力来运动