Cyclopentanone ethylene ketal was synthesized with I _ 2 as catalyst.以单质碘为催化剂合成了环戊酮乙二缩酮.The effects of reactant mole ratio , catalyst dosage , microwave irradiationtimeyield of cyclohexanone glycol ketal were investigate...
Thermal - power solid - state laser slabs limit enhancements of their laser powers.高热负荷固体激光介质的热效应是制约激光器功率提高的严重障碍.Power enhancements are at the core of the striking CHALLENGE car's modifications.功率增强功能是在引人注目的挑战赛车的修改核...
具备物理学电声学机械学的知识.Knowledge of physics, acoustics and mechanics.摘要游泳馆的语言清晰度设计是建筑声学和电声学的综合设计.Both the architectural acoustics and electroacoustics are used in the language articulation design....