Relying on the advantageous natural conditions, river transport and coastal shipping together constituted a relatively well-developedwater transportation network.
水上运输依托优越的自然条件，内河航运与沿海运输相结合，构成了相互交错、四面通达的水路交通网络。
2
The developedwater washing engineering vehicle, with converter as its power system, and with proven technology, features low cost, simple system and reliable protection.
开发的水冲洗工程车采用劈相机系统作动力系统，技术成熟，成本低廉，系统简单，保护可靠。
3
A number of products have been developed which are permeable to air and water.