Still, many needed supplies, instruments and facilities are lacking, and emergency care is spotty. 但还远远不够，许多设备药品都很匮乏，紧急救护的水平不一。
The backpack could be especially useful for soldiers, scientists, mountaineers, and emergency workers who typically carry heavy backpacks. 这种背包最适用于士兵，科学研究人员，登山者和紧急救护人员等高负重的典型人群。
