前述的描述难以成为一种操作性定义，也不适合在研究中使用。
The foregoing description is hardly an operational definition, suitable for use in research.
案例研究：soap互操作性示范。
希望这些可操作性的研究对中学地理教学有一定的启示与帮助。
I hope this operational research can be of great help to the senior geography teaching.
队列研究临床可操作性高，但其控制偏倚差。
Cohort study has a high clinical operation, but it is difficult to control bias.
队列研究临床可操作性高，但其控制偏倚差。
Cohort study has a high clinical operation, but it is difficult to control bias.
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