non-metallic inclusions的用法和样例：
例句
- The result showed that the cracking was caused by the fold-ing and nonmetallic inclusions of steel pipe.
结果表明，钢管中存在折叠及较严重非金属夹杂物是导致开裂的主要原因。 - The using data from detected non-metallic inclusions to estimate the status of undetected inclusions is a speculation in the theory of method, which has just reference value.
由已检非金属夹杂物中所得到的数据判断其他未检夹杂物的状态，在方法学上属于推测，仅具有参考意义。
