The tail end of the spacing sliding block is provided with springs. The top of the latch is provided with a link bar.

限位滑块的尾端装有弹簧，插销的顶部装有连接杆。

youdao

Following Mr. Graham's instructions, I dive to 10 feet and latch one finger to a mooring block, counting.

WSJ: The Ultimate Breathtaking Dive