In addition, the U. S. has delivered 436,000 meals, 12 prefabricated Bridges, 14 rescue boats, six large-scale water filtration units and a generator. U.
此外,美国已运餐436,000,运送12架预制桥梁,14个救援艇,6个大型水过滤装置和一台发电机。
2
The method is characterized by high efficiency, controllable performance, high added value and easy production on a largescale, thereby suiting filtration and separation of liquids and gases.