... floor cover 楼面覆面层 floor covering work 揉面覆面椎 floor covering 楼面覆面层 ...
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... floor diffuser天板扩集器 floor covering work揉里覆里椎 floor covering楼里覆里层 ...
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floor r covering work 揉面覆面椎
·2,447,543篇论文数据，部分数据来源于NoteExpress
Over four years of work experience in the trade and some courses in floor covering installation are usually required to be eligible for trade certification.
或者通常需要超过四年的行业工作经验，以及一些地板覆盖安装课程，才有资格申请行业认证。
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