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Valves may be sized to match existing lines, but swing check and stop-check valves should also be sized according to flow conditions for maximum service life.
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可以根据现存的相匹配的管线来确定阀门通径，但是旋启式止回阀和截止止回阀还应该根据最大限度延长使用寿命的流体状况来确定阀门通径。 |
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Valves requiring processing in the Clean Room should first be assembled prior to cleaning, subjected to cracking and reseat pressure, and flow tested in the flow outside the clean environment.
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要求在无尘室中完成各工序的真空管首先要在清洗之前要将其组装起来,再使其承受裂化和复位压力,接着在清洁的环境下进行流动测试. |
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Valves should be installed in the (stem) vertical position with the pipe flow horizontal only. For installations other than this, please consult factory when ordering.
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阀门应该只能安装在水平流向的管线上，其阀杆应该垂直向上。如果需要其它方式的安装，请在订购阀门时咨询工厂。 |
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Valves should be installed with the disc in the closed or almost closed position. This will prevent damage to the disc sealing edge.
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安装阀门时，阀瓣应该处于关闭或几乎关闭的位置。这样可以防止阀瓣密封边缘的损坏。 |
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Valves supplied with hammerblow handwheel as a standard.
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锤击手轮是阀门的标准配置。 |
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Valves with V-port trim are provided with non-revolving stems and position indicator assemblies on the yoke.
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形端口阀内件的阀门配置不旋转阀杆，在轭架上安装位置指示器。 |
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Valves with threaded-in strength welded seats offer an additional level of safety against fugitive emissions.
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带有螺纹旋进强度的焊接阀座能够为短时排放提供更高水平的安全性能。 |
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Vampires are often manifestations of the Wyrm, as are toxic waste and pollution.
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吸血鬼就是一种代表，犹如污染和有毒废物。 |
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Vampires coming alive in a modern-day setting are at the heart of Salem's Lot, a tale that sends chills up people's spines.
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吸血鬼在现代复活的情节则出现在令人毛骨悚然的《午夜行尸》中。 |
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Vampiric Touch: This spell now consumes the Inner Focus buff.
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吸血鬼之触：现在将消耗心灵专注效果。 |
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Van Arkel,G. J,1993.Long-term sediment modeling in Hamilton Harbors,M.Sc.Thesis,Civil Engineering,McMaster University,Ontario,Canada.
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何晶晶.受污染城市水体淤泥的清理与处置技术研究,中国城市建设与环境保护实际.北京:中国环境科学出版社,1997,181～184. |
