Characters、shapes and stage concentration of the contaminant were defined;And two representative drain pipes in Harbin was been measured by field experiment.
对污杂物的性质、形状以及分级浓度进行了定义,并通过实验在典型时段对哈尔滨市两处具有代表性的污水干渠进行了现场测定。
The fault between the impurities containing Zr and matrix is not formed during the rolling process but are depend on the microstructure after rolling.
含锆夹杂物与基体间的缝隙,不是在轧制时形成的,而是在轧后由相变后的组织决定的:有铁素体等软质相组织的钢中,夹杂物与基体的缝隙较小;主要由板条等硬质相组成的钢中,夹杂物与基体的缝隙较大。
