based on the past experience, the selections of the thermoplastic plastics on different positions in the plant are also made.
结合多年的使用经验,提出了在湿法磷酸各部位的热塑性塑料的选用意见。
other plastics can be repeatedly reheated to return to the plastic state ; they are thermoplastics . examples of thermoplastic plastics are acrylics , nylon, and polyethylene.
其他塑料可以二次通过再热的方式恢复到可塑性状态,这些是热塑性塑料,如丙烯酸树脂,尼龙和聚乙烯。
the preparation of rubbers and plastics waterpipe using the general character of the thermoplastic rubbers and thermoplastic plastics to produce waterpipe, it is the frist domestic invention.
用热塑性橡胶和热塑性塑料共混改性生产水带管,在国内尚属首创。