不麻烦无需设置，安装即用。

No fuss, no setup. Just install and works!

youdao

本发明的容器能够更节省材料，并且特别是无需设置持环。

The container saves more material and especially has no need for setting a support ring.

youdao

提出了一种无需设置参考系统求解观测值方差阵的动态方法。

So the author give a dynamic way of solution to observation covariance, but also the way need not set up reference system.

youdao