F. board side seal shall be on the water, air and dust are deeply however.

板端的密封应当对水，空气和尘埃是透不过的。

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Heat seal paper: paper coated on one side with adhesive activated by heat.

热封纸：一面涂上受热力而起作用的胶粘剂的纸。

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Check side wind ow seal for damage.

检查侧窗密封件是否损坏。

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Check side wind ow seal for damage.

检查侧窗密封件是否损坏。

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