Constantinen.君士坦丁(阿尔及利亚城市)n.康斯坦丁(男子名)constantadj.不变的；经常的n.常数；恒量constant pressure delivery valve等压出油阀constant ratio frequency changer恒比变频器, 定比变频器constant-pressure water supply恒压供水constant and high-speed growth持续快速增长constant-flow oxygen equipment连续供氧设备constant- molar-holdup model恒摩尔持液模型constant-ratio investment plan固定比例投资法constant-length heat treatment定长热处理constant static pressure control定静压控制constant pressure outer boundary定压外边界