介绍了苯乙酸的生产方法 、 用途及市场.The production process, use and market of phenylacetic acid were introduced.介绍了鉴别氯代乙酸的反应原理和操作方法.Reaction principles of chloroacetic acid detection and its operation Methods: Were introduced.在此反应条件下, 乙...
The optimum design method of involute internal gear slotting cutter is introduced.介绍了渐开线直齿内齿轮插齿刀的优化设计方法.The involute progression of hallucination is strange.幻觉的复杂的发展过程很奇特.This paper introduces calculation and measurement...