1. 可操作的：opera 歌剧 | operable 可操作的 | operand 操作数

2. 可行手术的：operability 可手术性 | operable 可行手术的 | operating microscope 手术显微镜

3. 可手术治疗的：operable 合用的 | operable 可手术治疗的 | operameter 运转计

4. 合用的：operability 操作性 | operable 合用的 | operable 可手术治疗的

adj

1. capable of being treated by surgical operation

    e.g. an operable cancer

2. usable for a specific purpose

    e.g. an operable plan
           a practicable solution

    Synonym: practicable

3. fit or ready for use or service

    e.g. the toaster was still functional even after being dropped
           the lawnmower is a bit rusty but still usable
           an operational aircraft
           the dishwasher is now in working order

    Synonym: functionalusableuseableoperational