constantlyadv.不断地;经常地
constantadj.不变的;经常的n.常数;恒量
constant of proportionality比例系数
constant voltage equipiment恒压装置
constant temperature ageing等温时效
constant shear viscosimeter恒定剪切粘度计
Constant diffraction length等衍射长度
constant-level lubricator恒定油位润滑器
constant rate of elongation恒定伸长速率