sodium metaphosphate的用法和样例：
例句
- The addition of dispersant of sodium hexametaphosphate favorates the reappearance of the test results.
加入适量的分散剂六偏磷酸钠后，测试结果重现性好。 - Washing acid and adding sodium hexametahposphate in soil granulometric analysis tests for the dispersion of soil polluted by acid were suggested.
在粒度成分试验中表明不同分散剂分散酸污染土的效果是不同的，建议采用洗酸后加六偏磷酸钠分散土样。
