短语词组短语unworkable market 市场失灵unworkable seam 不可采煤层unworkable material 不宜加工材料unworkable deposit 无开采价值的矿床unworkable price 做不开的价格unworkable e 难运转既unworkable concrete 难灌筑混凝土unworkable plan 难实行计划UNWORKABLE ADJ 做不开 返回 unworkable