求翻译：14.2咨询人如需外聘专家协助，在委托的建设工程造价咨询业务范围内其费用由咨询人承担；在委托的建设工程造价咨询业务范围以外经委托人认可其费用由委托人承担。是什么意思？

14.2 Consulting for external experts to assist, commissioned the construction engineering cost consulting business within the cost borne by the consultant approved by the principal; commissioned the construction engineering cost consulting services outside the scope of its cost to be borne by the cl

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