他似乎把负号误作正号了.He seems to have mistaken a minus for a plus.出现负号的原因与 33-2 节所讲的相同.The reason for the minus sign is the same as in Section 33 - 2 .这个负号表示这个力总是和速度的方向相反.The negative sign describes the fact that this is always o...

“负号”的拼音为：fù hào...

“负号”的英语可以翻译为：minus，minus sign，negative indication，negative sign ...

“负号”的反义词：正号。...