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| 1. | a finishing coating applied to seal out especially moisture. |
| 用于密封尤其是防潮的外层。 |
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| 2. | As soon as it does, one swipe from the bear's powerful forepaw will haul the seal out onto the ice. |
| 只要海豹把头探出来，来自熊掌的重击就会把它掀到冰面上。 |
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| 3. | seal, a solution to the headache of frequent servicing of other submerged pumps due to the easily worn-out |
| 取消了机械密封，解决了其他液下泵因机械密封容易磨损而须经常维修的烦恼，节约了泵的运行成本，提高了工作效率。 |
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