求翻译：第五条 材料采购由后勤保障部归口管理，原则上不允许自购，因特殊情况确需自购的，需经项目领导和后勤保障部主管人员同意。各单位和部门所需材料按规定将计划上报到后勤保障部，由后勤保障部统一组织采购。是什么意思？

Article material procurement centralized management by the Ministry of logistical support, in principle, allow the self-purchased, really necessary since the purchase because of special circumstances, subject to project leadership and logistical support of the Ministry of executives agreed. Each uni

Article 5 - purchase of materials by the Logistics Department, since in principle does not allow for a special purchase, that is, the share of the project leadership and logistical support personnel agree that head of the Department. All units and departments will be required to plan materials requi

Fifth article The acquisition of material by the logistics support department return management, in principle does not allow from to buy, because the peculiar circumstance must from buy firmly, must agreed after the project leadership and the logistics support department responsible staff.Various un

Fifth material procurement from centralized management of Logistics Department, does not allow, in principle, since the purchase, due to special circumstances really necessary since the purchase, subject to project leadership and logistics guarantee department managers agreed. Plan materials as requ

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