growth zoning meaning in English

生长环带

The effect of solidification rate on the solidified structure , cooperation growth zone and microstructures such as tac rods volume fraction , tac rods average spacing , tac average transverse area and y phase in this eutectic composite were systematically investigated with lmc . the relationship between solidification processing controlling and solidification microstructure was established
借助金相技术、电镜技术、图象处理技术等多种分析测试手段，考察试样的界面形态、组织特征以及共晶形貌等多方面的凝固特性，建立了凝固过程控制与凝固组织的对应关系。