association of classification society

例句：

1. 1. The association of scientists andengineers is working on a new project.
   科学家和工程师协会正在研究一个新项目。
2. 2.The association has been formed to promote environmentalprotection.
   该协会成立的目的是促进环境保护。
3. 3. Theassociation will hold a conference in New Yorknext month.
   该协会将于下月在纽约举行会议。