预先: in advance; beforehand润滑: lubricating; lubrication; lu ...预先润滑群接触器: pregreasing group contactor使预先润滑给…预先涂油: prelubricate优先润湿: preferential wetting; wetting preference优先润湿性: wettability preference预先: in advance; beforehand 预先打好行李 be beforehand with one's packing; 预先感谢 thank sb. in anticipation; 预先警告 forewarn; 预先声明 state explicitly beforehand; 预先通知 notify in advance; 她总是预先付房租。 she is always beforehand with the rent. 一切都已预先安排妥当。 everything has been fixed in advance润滑: [机械工程] lubricating; lubrication; lubricate 飞溅润滑法 splash lubrication; 润滑材料 lubricant; 润滑层 lubricating layer; 润滑膏 cup grease; 润滑冷却液 metalworking coolant; 润滑器 lubricator; 润滑作用 lubrication; lubrication action; 润滑装置 lubricating device事前；预先: be beforehand事先，预先: in advance提前,预先: in advance预先, 事先: by anticipation预先,事先: in advance; inadvance预先的: advance; anticipated; preliminary; previous; prior预先交: be paid in advance预先写: preliminary writing预先形成；预先成型: preformation润滑；润滑法；注油: lubrication润滑袋；润滑罩: grease boot润滑脂润滑: grease lubrication不预先通知: without notice; without previous notice; withoutpreviousnotice或预先决定: predetermining使预先产生: prepossess事先，预先，提前: in advance提及,(预先)通知: notice
