Channel steel
[化] 槽钢
🧩 词语组成解析
steel
[stil]
n. 钢，钢铁;钢制品;兵器;钢铁工业;
vt. 包上或镀上钢;使坚定;
adj. 钢制的;钢铁业的;坚强的;[色彩]青灰色的;
🗣️ 情景例句
A community center
一个社区中心
But wouldn't you like to spend an extra day or two here?
你们不愿意在北京多待一天吗？
Even more processes are never patented at all but kept as secret processes.
更多的工艺过程根本就不会取得专利权，而是作为秘方保存着。