(塑料薄膜袋)热封(口),熔接,熔焊

heat seal的用法和样例：

例句

The machine is a new type of heat sealing machine,multifunctional automatic packing machine.本机是一种新型热封式，多功能全自动袋泡茶饮品包装设备。
It takes speed to weld steel at this heat.在这样的高温下熔接钢铁需要快速。
Derating requirements of heat fusion fittings and quality evaluation were explicated.对热熔焊制管件的压力折减和品质判定进行了阐述和说明。

赖世雄初级美语入门篇 54

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