They were incorporated into gothic stonework as early as the 13th-century to keep rain water off cathedral roofs, their mouths serving as the ejector spout.
早在13世纪，这种哥特式建筑是为了存储教堂屋顶上的淌下的雨水建造的，他们的嘴巴就像是喷泉口。
A sampling project for the water quality automatic monitoring system was introduced in this paper, self-absorption-ejector pump was used in the system instead of centrifugal pump.
介绍一个以自吸喷射泵为取样泵的水质自动监测系统取样工程建设方案及其日常维护措施。
A scheme using lime waste water as absorbent and selecting ejector scrubber for sulfur dioxide removal is suggested.
提出用石灰废水为吸收剂、选择引射式洗涤器来进行烟气脱硫的方案。
The operation characteristics and the energy-saving based importance of water steam ejector was analyzed, the effect of the ejector in practical use was presented.
分析了此类喷射器的工作特点和节能意义，介绍了此类喷射器在实际中的使用情况。
The operation characteristics and the energy-saving based importance of water steam ejector was analyzed, the effect of the ejector in practical use was presented.
分析了此类喷射器的工作特点和节能意义，介绍了此类喷射器在实际中的使用情况。
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