From the right figure of FIG. 5, a maximum clearance does not change even though there is an avoidable dynamic obstacle.

图5右侧的图可以看出，即使有一个可以回避的动态障碍物，最大的间隙值也不会产生转变。

youdao

Investors are right to be grateful to Congress for not plunging the US into an entirely avoidable downturn.

BBC: Cliffhanger: Still hanging