待生催化剂提升管 相似短语
spent riser 待生催化剂提升管
spent ore 废矿
spent bullet 强弩之末冲力已尽的子弹
spent clay 废土
partially spent 部分报废
spent material 废料,渣滓
spent gas 废气
spent solvent 用过的溶剂
spent doctor 废博士溶液试硫液
spent fish 产过卵的鱼
spent a. [Z]1.精疲力竭的,极为衰弱的2.用过的,失去效能的3.(鱼)产过卵的
riser n. 起床者,叛徒,起义者,竖板
well spent a. 使用得当的
ill spent adj.花费不当的, 花钱浪费的
flat riser 垂直起落飞机
riser and stack 上下水道立管
angle riser 角度升降器
high riser n. 单双人两用活动床同义参见:bed
riser head 【化】 冒口
riser connector 隔水导管连接器
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