速率: speed; rate; tempo 短语和例子冷却速率 rate of cooling; 送纸速率 line feed; 速率测试 rate test; 速率计 [工业] speedometer; 速率控制 rate control; 速率控制器 rate controller; 速率调节器 speed regulator; 速率陀螺 rate gyroscope; ra
常: Ⅰ形容词1.(一般; 普通; 平常) ordinary; common; normal 短语和例子反常 unusual; abnormal; 人情之常 natural and normal; 习以为常 be used [accustomed] to sth.2.(不变的; 经常) constant; invariable 短语和例子冬夏常青 remain green thr
