Our best steel chisels are made on the same plan: at the cutting edge they have a thin plate of hard steel, which is supported or backed up by a thicker plate of softer steel.
刀口由坚硬的薄钢片制成, 后面再附上一块更厚的软铁。
单词 | soft steel |
释义 |
soft steel
原声例句
英国学生科学读本 Our best steel chisels are made on the same plan: at the cutting edge they have a thin plate of hard steel, which is supported or backed up by a thicker plate of softer steel. 刀口由坚硬的薄钢片制成, 后面再附上一块更厚的软铁。 |
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