preliminary to在 ... 之前
preliminaryadj.初步的;预备的;开始的n.初步行动;准备;初步措施
preliminary production[化] 初期产量
preliminary clearifier初步澄清池
preliminary dimensions预定尺寸
preliminary operations初期业务,准备工序
preliminary correction初校正
preliminary diseussion初步探讨
preliminary compaction预压紧
preliminary cataloging预编
Preliminary technician预备技师
preliminary impression[医] 初印模