便携式手持动力工具。手柄部位振动量的测量。第7部分：具有冲击，冲力和棘轮传动动作的扳手，螺锥和螺母拧紧器。
Hand - held portable power tools. measurement of vibrations at the handle. part 7: wrenches, screwdrivers and nut runners with impact, impulse or ratchet action.
这种动量效应对另一条金融理论――”有效市场假设”――产生了强烈的冲击。
The momentum effect drives a juggernaut through one of the tenets of finance theory, the efficient-market hypothesis.
将各种按动量定理工作的冲击式水轮机作为研究对象，构建其基本原理模型，严谨地推导出原理模型基本方程及其数值解。
The basic principle model was established on the various impulse turbines. The basic principle formulas, the formulas of kinetic energy and direction of outflow were deduced strictly.
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