英语词汇“rule of sign”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	rule of sign
释义	rule of sign 正负号规则;符号律
随便看	variable frequency transformer variable-frequency transformer variable frequency trigger variable-frequency trigger generator variable frequency trigger generator variable-frequency vibration test variable frequency vibration test variable frequency vibrator variable friction type snubbing device variable fuel orifice carburetor variable function variable function generator variable-function generator variable gag variable gage variable gage-and-not-go gage variable-gain variable gain variable-gain amplifier variable gain amplifier variable-gain approach variable gain approach variable-gain cell variable gain daming variable gain damping 打不尽毡上的土打不尽的芝麻，摘不尽的棉花打不干的井水，使不完的力气打不开算盘打不得官司，告不得状打不成狐狸，惹一屁股骚打不成狐狸，惹了一身骚打不成米，把口袋丢了打不成米，把口袋也丢了打不掉蜂窝，反螫了手眉高眼低眉黛眊看看看三国掉眼泪，替古人担忧看上看上去看上眼看不上