单词	棘轮旋凿
释义	棘轮旋凿〖设计〗ratchet screwdriver
随便看	principle of presumption of innoncence principle of price stablization principle of primacy principle of priority principle of private law rule principle of probability principle of processing principle of pro drug principle of pro-drug Principle of profit maximization principle of program design principle of programming language principle of project cost control principle of proliferation and compensation Principle of Prominence principle of promotion on merit principle of property right law principle of proportion principle of proportionality principle of proportionalty principle of prosecution Principle of Protein Structure principle of provenance principle of proximate cause principle of proximity