定调管的英文：
pitch pipe

pitch是什么意思：
v. 投掷；为…定音高；搭帐篷；用沥青涂
n. 投；投球；音高；程度；沥青

deliver a pitch
竭力推销

the pitch was away (or wide); an outside pitch.
那个球投歪了；一个偏外的坏球。

We should pitch it within and without with pitch.
我们应该内外都涂上沥青。

The boys pitched a tent by the river.
男孩子们在河边搭起了帐蓬。

They pitched up for the night.
他们扎营过夜。

pipe是什么意思：
n. 管子；烟斗；管乐器，笛子
v. 以管输送；以管乐器演奏；尖声地说；吹哨子下令；滚边

He only played the pipe.
他只不过是吹吹笛子罢了。

They piped the captain on board.
他们以笛声欢迎船长登船。

On the right was a clutter of pipes and debris.
右边是乱七八糟的管子和破碎杂物。

Every pipe is voiced and tuned.
每支音管都要修音调律。

pipe edges sewing machine
滚边缝纫机