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1·The outer sleeve is aluminum, inner sleeve is hot-dip galvanized seel.

外管为铝制件，内管为热镀锌钢制件。

2·The outer sleeve is aluminium, the inner sleeve is hot-dip galvanized seel.

外管为铝制件、内管为热镀锌钢制件。

3·The tank bodys are connected by pneumatic tyre unions and glass steel tubes, so they have the advantages of fine-looking, installation easily, reliable seel, and so on.

罐体连接采用气胎由壬加玻璃钢管，具有安装便捷、美观、密封可靠等优点；

4·Ted Seel, a Cairo-based security expert, explains that the fee structure for the Suez Canal depends on the size, or more specifically the weight, in gross tons, of a ship.

特德。西尔是一个开罗方面的安全专家，他解释说这些收费依据船只的大小，具体说就是吨位的大小。