In shiprepair and shipbuilding line ,derusting of ships structure and hull adopts traditional ways like hand chipping, scraping and pneumatic sand blasting, the shortcoming is that they pollute the environment severely.
英
美
- 在修造船行业中;船舶的构件和船壳的除锈;其传统工艺是采用手工拷铲和气动磨料喷射的方法;它们的致命弱点是严重污染环境.