在亲本选配中,尽量提高双亲性状的表现,以取得较大的杂种优势。
B-12 type water solvent lacquer is used to produce coating material. The main procedures such as pre-heating, coating, and drying are explained. apolegamy of key equipment is introduced.涂料选用B—12水性漆,对工艺中涂敷前预热、涂敷、涂敷后热风烘干等主要工序进行了详细叙述,对工艺中几个关键设备的选配做了介绍。