基本解释n.補縮冒口同根派生 sinkhead相关词英汉例句Keywords Expanding Pearlite;Thermal Insulating Sinkhead;Cast-Steel Part;Shrinkage;Srinkage Looseness; 膨脹珍珠巖;保溫胃口;鑄鋼件;縮孔;縮松;sinkhead更多例句