| 例句 |
In industry, diamond can form a tough, non-corrosive coating for tools.在工业上，金刚石可以用作工具表面坚固、耐腐蚀的覆盖层。Certain conditions can crystallize carbon into diamonds.特定的环境可以使碳结晶成金刚石。This land is known to be rich with oil, gas, coal, and diamonds.这个国家盛产石油、天然气、煤和金刚石。Certain conditions can cause carbon to crystallize into diamonds.特定的环境可以使碳结晶成金刚石。 |