dryers干燥机dryadj.干的；干燥的；干旱的；口渴的；枯燥的v.（使）变干dry patching mortar填塞砂浆dry charge smelting干料熔炼drying preservation干燥保藏dry disperse method干分散法dry seaso run-off枯季径流Dry-Braised Prawn干烧虾球dry -element cell干电池dry suspended solid干悬浮固体dry slag extraction干式排渣dry type ransformer干式变压器

1. Is the engine dry sump or wet sump?
   是发动机油底壳或湿干油底壳？