1·To determine the catenary curves of arches, he would tack a sketch of a foundation plan on the ceiling, hang loops of string, and attach weights along the loops in proportion to down forces.
为了确定拱顶的链状曲线，他会用大头针将基座草稿钉到天花板上，吊上几圈绳子，在绳子上加重，与向下的力相符。
2·And I'm going to attach now that string to hold them together.
我现在要粘上去了，让弹簧将它们连起来。
3·Attach it to a shoelace or a string, and you've got yourself a fishing line.
把它系在鞋带或细线上，钓鱼线就大功告成了。
4·I'm going to put an object now on an incline again, as we did before and instead of having it sit on its own I'm going to attach to it a string.
和之前一样，还是把物体放在斜面上，这次不单独拿上来，我要把它和细绳相连。
5·Then attach a string and hang it in the trees.
然后用绳子把它们系好挂到树上去。
6·Attach one coin to each end of the string with a small piece of tape.
用一小块胶布将硬币分别粘在绳子的两头。
7·Now you need to dry it so approach the hook on the right wall (zoom). Attach the clips to the scarf, stretch the string across the hooks and put the wet scarf onto it. Once again go outside.
然后来到右边有钩子的墙上，把绳子放到钩子上，再把披巾和夹子组合放到绳子上晾干。
8·On standard 4 string bridges these are used to attach the bridge top plate to the base plate .
在标准的4串桥，这些是用来连接的桥梁顶板与底板。
9·The first thing to be done was to bend the bow in order to attach the string.
第一件要做的事就是弯弓以装上弓弦。