要有效维护公路用户的合法权益，公路车辆通行费标准应当以公路级差效益为上限。
If we want to defend the legal right of the highway users, the highest tolling rates shouldn't surpass the differential benefits that the highway users would get.
今天，互联网是一个用户融资系统，将各种机构联系在一起的“信息高速公路”。
Today, the Internet is a user-financed system tying institutions of many sorts together into an "information superhighway.
并且公司可按用户要求设计产品，可以满足石油、化工防水材料，船运、铁路、公路、市政、食品、城建等对泵产品的需求。
User requirements and the company can design products to meet the oil, chemical waterproofing materials, shipping, railway, highway, municipal, food, and urban construction of pump products.
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