趣英语 / “负号”造句

“负号”造句

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 opposite to the velocity.

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