| 单词 | secondary sealing |
| 释义 | secondary sealing in the Oil and Gas Industry (sɛkəndɛri silɪŋ) noun (Extractive engineering: Downstream facilities, Terminals) primary sealing Secondary sealing is a system of wiper seals used in floating roof tanks. The tanks would be equipped with floating roofs and provided with primary and secondary sealing devices to minimize hydrocarbon emissions. There is primary sealing of the space between the inner wall of the tank and thefloating roof, and secondary sealing above the primary seal. Secondary sealing is a system of wiper seals used in floating roof tanks. |
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