短语词组短语shiftable ramp 移动坑线shiftable employment 转移就业Shiftable window 可移动窗口shiftable spanner 活动扳手shiftable mould -board 可拆换的刀片Non -shiftable 不可移位shiftable haulage line 移动线路Variable shiftable valve lift controls 可变档位气门升程控制 返回 shiftable