preconcentrate中文什么意思

初选精矿

预选精矿

例句与用法

1. The energy content of the preconcentrate of the example could be increased by the addition of other explosives such as trinitrotoluol .
   加入其它炸药，例如三硝基甲苯，可使所列举的预浓缩物的能量增加。