| 1. | Government flying service aircraft engineers association
政府飞行服务队飞机工程师会 |
| 2. | The government local civil engineers association
政府非海外土木工程师协会 |
| 3. | Railway electrical engineering association of japan
日本铁道电气技术协会 |
| 4. | San diego chinese - american science and engineering association
与我们联络活动成果与花絮 |
| 5. | Government local civil engineers association
政府非海外土木工程师协会 |
| 6. | Jrcea japan railway civil engineering association
日本铁道施设协会 |
| 7. | Member of quality inspection committee of foundry branch of china mechanical engineering association
中国机械工程学会铸造分会质量及检测技术委员会委员， |
| 8. | Deputy director of foundry technique and plasticine committee of foundry branch of china mechanical engineering association
中国机械工程学会铸造分会铸造工艺及造型材料委员会副主任， |
