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
发生: 1.happen; occur; take place; arise; crop up; chance; befall; come off; come to pass; come about; come up; come what may; be set; turn up; bring to pass:2.germination; occurrence3.-gony; -p