without boron的意思|示意

Production: monomer boron, Danhuapeng, boron anhydride, without detectable; Hydrochloric acid, Yean, ammonia water.

生产：单体硼，氮化硼，硼酐，无水硼砂；盐酸，液氨，氨水。

A comparison was made among the segregation behaviors of the boron in steels with or without boron contents.

在含硼和不含硼钢中对硼的偏聚行为进行了对比。

Production: monomer boron, Danhuapeng, boron anhydride, without detectable; Hydrochloric acid , Yean , ammonia water.

生产： 单体硼， 氮化硼， 硼酐， 无水硼砂； 盐酸，液氨， 氨水。