rubber coat boot是什么意思

用法例句

Using Jilin Chemical Industry Corporation EPDM as main material ,basic formulation and basic process of railway rubber coat boot and pad meeting the TKTJ 9904-1 standard of railway department are developed.

以吉化三元乙丙橡胶 (EPDM )为主要原料 ,开发出符合铁道部规定的TKTJ990 4- 1标准的铁路橡胶套靴及轨枕垫板基本配方和基本工艺 ,并已在河北某橡胶厂实现工业化生产。