Low pressure seal test 4.4.1 for low pressure seal test, the sealing surface should be kept clean, no oil, no grease and seal fat, for to prevent scratches.

低压密封试验4.4.1进行低压密封试验时，低温阀门密封面应保持干净，无油、无油脂和密封脂，如需防止擦伤。

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No Screw Thread Connect Fix, No Sway Rotate Connect, Two Layer Seal, Distinctive Seal Protect Craft, Prevent Impurity Enter The Seal Layer.

无螺纹连接固定，无摆动旋转连接，双层密封，独特密封保护工艺，防止水中杂质进入密封层。

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No sea ice means no seal hunt, which can mean no meat for sled-dogs.

ECONOMIST: One man and his dogs | The

Because of the tiny size, however, we had to jam them oddly far into our ear canals to get a tight seal no matter which tips we used (single and dual-flange options are offered).

ENGADGET: Ears-on with Klipsch's latest intra-aural headphone lineup: Image S4 (II) series, X7i

Ms. EVA SEAL: There is no organized general consensus of what people need to do after the fact.

NPR: Mississippi's New Urbanist Rebuilding Unveiled