Roll-welded (monolayered) cylinder
[化] 卷焊式圆筒; 卷焊式单层圆筒
🧩 词语组成解析
roll
[rəul]
vt. 辗;使（眼球等）左右转动;（使）原地转圈;滚动;
vi. 左右摇晃;翻滚;开始移动，启动;
n. 名册;滚翻;
v. 焊接；使结合（weld的过去分词）
🗣️ 情景例句
Use a dictionary and grammar guide constantly.
经常使用字典和语法指南。
This country is famous for its beautiful lakes.
这个国家以其美丽的湖泊而闻名于世。
The boys felt tired so they put out the fire and crept into their tent.
于是他们扑灭了篝火，钻进了帐篷。