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After each test, no visible damage shall be manifested , nor shall the hermetic seal break down.
试验前后, 外观未见明显损伤,气密性末破坏.
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3、
Dad had to break the hermetic seal to get a pill from the new bottle.
父亲必须打开密封的封口,从新瓶中拿出一颗药丸.
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4、
When the Leopard Seal loses its grip, the penguin will make a break for it.
当海豹追不上他们的时候, 企鹅就休息一会儿.
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