Road tanker vehicles. Metallic tankers for liquid chemical products. Devices effecting discharge by means of pressure: plunger tube, air off - take.

道路油罐车。液态化学产品金属油罐。压力排放装置：管状柱塞，进气孔。

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Recommended for high temperature dry air and some high temperature chemical products.

高温干燥的空气和一些高温的化学物，饮用水等。

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The throwing of waste products into the ocean hurts the life in the sea, while waste gases change the chemical balance of the air and shut out some of the sun's necessary life – giving lights.

往海洋里排放污染物质给大海里的生命带来伤害，废气改变了空气中化学物质的平衡并且阻挡了一些太阳的益处——光明。

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