Spirally grooved tube
[化] 螺纹沟槽管
🧩 词语组成解析
adv. 成螺旋形地
a. 带纹道的；表面有沟槽的
🗣️ 情景例句
Only one hundred and twenty-one votes!
仅仅一百二十一票！
Many hands are better than one.
众擎易举。
This is a kind of printing that blind people can read by touching groups of raised points that are printed on paper.
布莱叶盲文是一种印刷字体，盲人通过摸印在纸上起的点点来读书。