18世纪，美国各州将电报线路视作运输业运营商，责成运营商以连续的费率承发来自任意个人和任意其他线路的电报。
American states in the late 19th century treated telegraph lines as common carriers, obliging them to carry dispatches from any person and from any other line at consistent rates.
在建设工程招标投标过程中，应用科学的方法进行投标决策，是我国建设工程承包业承待逐步实施和完善的重要举措。
It is urgent that the scientific decision-making methods should be used in construction project contract trade in China, which needs to be conducted and perfected.
在建设工程招标投标过程中，应用科学的方法进行投标决策，是我国建设工程承包业承待逐步实施和完善的重要举措。
It is urgent that the scientific decision-making methods should be used in construction project contract trade in China, which needs to be conducted and perfected.
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