heat seal的用法和樣例：
例句
- The machine is a new type of heat sealing machine,multifunctional automatic packing machine.
本機是一種新型熱封式，多功能全自動(dòng)袋泡茶飲品包裝設備。 - It takes speed to weld steel at this heat.
在這樣的高溫下熔接鋼鐵需要快速。 - Derating requirements of heat fusion fittings and quality evaluation were explicated.
對熱熔焊制管件的壓力折減和品質(zhì)判定進(jìn)行了闡述和說(shuō)明。
