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1·The insulant was burned for overheating.

绝缘材料因过热而被烧毁。

2·The cold store can do business under capital repair. It is shown that PEF is a new excellent insulant which should be extended.

同时冷库大修可以不停产，因此PEF是一种值得推广的新型优良隔热材料。

3·A suggestion was presented for strengthening research of non-halogen flame retardant in order to develop PP cable insulant with outstanding flame retardancy...

建议加强对无卤阻燃pp电缆料的研究，以开发出力学性能优异的无卤阻燃pp电缆料。