库管员应经素质培训合格，持证上岗。
Warehouse keeper shall be approved by the quality of training qualified, certified.
必须对操作工进行知识和技能的培训，经考核合格持证上岗。
To improve knowledge and skills, the operators must be provided with necessary training.
必须对操作工进行知识和技能的培训，经考核合格持证上岗。
To improve knowledge and skills, the operators must be provided with necessary training. Only those holding qualification certificates are allowed to work on relevant posts.
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