air proof 不透气的 ; 气密的 ; 密封 ; 不透空气
Air Proof Packing 不透气包
air proof paper 不透气纸
air-proof hose 不漏气胶管
air-proof inspection criterion 密封检验标准
air proof film 气密薄膜
air proof hose 不漏气胶管
air bells proof 密封的 ; 不透气的
With card-board, oil-cloth and canvas, she made the lattice-work air-proof and light-proof.
用一些纸板，油布和帆布她就让这些小个子防风又防晒了。
It is proved by the experiments that the quality of air-proof of the device is very important for realizing the non-oxidation healing.
实验表明：系统的密封质量对能否实现无氧化加热至关重要。
The characteristic, equipment and technology of preparing zinc powder using air-proof submerged arc furnace are discussed, on the other hand, the plant practice is also introduced.
介绍了矿热电炉生产锌粉的工艺特点，主要工艺设备特点及设备技术特征，以及实际生产的应用效果。
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