If units of the same profession form a consortium, the grade of qualifications shall be determined according to the unit with lowest qualification level.

由同一专业的单位组成的联合体，按照资质等级较低的单位确定资质等级。

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No lift-manufacturing unit shall borrow from other units the qualification certificate of conducting lift manufacturing, installation, renovation or maintenance activity.

电梯生产单位不得向其他单位转借从事电梯制造、安装、改造和维修活动的资质证书。

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The units engaged in contracted construction of foreign projects or service cooperation with other countries shall have the necessary eligibility or qualification.

从事对外工程承包或者对外劳务合作的单位，应当具备相应的资质或者资格。

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The rules, as we understand it, stipulate that if the 3 units are cashed in for an AS qualification, the only way that the AS result can be improved further is by the student re-taking all 3 units.

BBC: Heads' letter warns of AS-level confusion