precipitating

suddenly the ladder broke, precipitating them down into a heap.

子突然断裂，让他们摔作一团。

Methods:We separated the subfractions of LDL by precipitating method and density gradient ultracentrifugation, and identified the subfraction by electronphoresis and electron microscope.

方法:通过沉淀法分离LDL,然后经过超速离心法分离其亚组分。

Palladium can be separated from polyxene by the process of resolving polyxene,removing nitrate,precipitating palladium,etc.The grade of pure platinum obtained from the process is more than 99.95%.

粗经王水溶解,赶硝,加入丁二酮肟使大部分钯以沉淀的形分离,余留的少量钯用溴酸钠水解法处理,可达到钯分离的目的,所得纯品位高于99.95%。