1.Formaldehyde, benzene, ammonia and radioactive pollution' superscale have seriously affected people's health.

1.甲醛、苯、氨气和放射性污染经严重影响了人们的健。

2.Recycled waxes by holding deposition at home cann't meet the requirements of wax performance,especially dramatical superscale in ash content.

2.国内回收模料采用静置法,不能保证模料的性能要求,尤其是灰分严重。