逆时的英文：
inverse time

参考例句：

It forms a flexibility matrix which, when inverted, gives (So)
当形成一个柔度矩阵求逆时，它给出(So＊)。

inverse是什么意思：
n. 相反；倒转
adj. 相反的；逆向的；倒转的

The value of a fraction is inversely proportional to that of the denominator
分数值与分母值成反比例。

The recorder trace is a series of inverse peaks.
记录器扫迹是一系列相反的波峰。

The value of a fraction is inversely proportional to that of the denominator.
分数值与分母值成反比例。

The operation that is the inverse of differentiation is called integration.
与微分相反的运算叫做积分。

We call -a the additive inverse of a.
我们称-a为a的加性逆元素。

time是什么意思：
n. 时间；（一段）时光；时机；机会；历史时期；时代；次；回；倍
v. 测定…所花时间；调准；调整；测定…所花时间
adj. 时间的；定时的；定期的；分期的

discrimination time
辨别时间辨别时间

It is time to go.
该走了。

They are not in step with the times.
他们跟不上时代的步伐。

This was for the time only.
这只是一时的权宜之计。

What for this time?
这次又是为什么？