蒸发的物质能再凝结, 形成新的粒子.Evaporated material can recondense, forming new particles.吸气离子泵通过剩余气体与蒸发的金属之间的化学反应减少了内腔的压力.Getter - ion pumps decrease chamber pressure by chemical reaction of residual gases with an evaporated metal.它通...
加入好的淀粉溶液指示剂,这时溶液变成兰色.Upon the addition of a good starch indicator a blue solution results.指示剂选择不适当可能给音量分析带来重大误差.Improper choice of indicators can introduce serious errors into volumetric work.目前蔬菜的热烫终点以过氧化物酶作为指示剂来确定.Pres...
Colligation management subsystem include analyze system and system management.综合管理子系统包括综合分析、系统管理.New and more sophisticated of these systems is colligation various manufacturer's machine.新的这些系统更加精密复杂,是集成综合了不同制造商的机器....