保姆月嫂照看小孩老人护理护工

Schneiderite, for instance, consisting of a mixture of ammonium nitrate and dinitronaphthalene, is mixed in an edge runner in batches of 60kg.

例如，由硝酸铵

二硝基组成的混合炸药施奈德莱特，便是

每批60公斤在轮碾机中混合的。