一组要素一旦构成一个系统，就产生了各孤立要素及其机械总和所没有的属性。
Once a group of elements constitute a system, the system takes on the property that each isolated element itself and their mechanical summing-up do not possess.
马可尼是第一个开发和完善这一系统的人，他使用了最近发现的构成电磁谱仪的“空气波”。
Marconi was the first to develop and perfect this system, using the recently discovered "airwaves" that make up the electromagnetic spectrum.
政府正在计划投资几十亿建一个由水渠、水管和高架水道构成的系统，将水从潮湿的南方转调到干旱的北方。
The government is planning to invest billions in a system of canals, pipelines and aqueducts to divert water from the soggy south to the parched north.
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