| 1. | Structural improvement of model ywd submerged sewage pump
型液下污水泵的结构改进 |
| 2. | Improvement of the structure disc frictional clutch
盘式摩擦离合器结构改进设计 |
| 3. | Constructive improvement of centrifugal cast aluminium die
离心铸铝模结构改进 |
| 4. | Technical renovation of coal plow in power generation plants
电厂用犁煤器结构改进 |
| 5. | Study of improving reverse cooling tower structure
逆流式冷却塔结构改进研究 |
| 6. | Improvement for structure of reciprocating pump valve
往复处泵泵阀结构改进 |
| 7. | Computer simulation and analysis of mini - bus front crash
基于碰撞仿真对小客车的结构改进 |
| 8. | Structural improvement to belt conveyor idlers
带式输送机托辊的结构改进 |
| 9. | Structure improvement of the burning bottom layer fan gate
烧结布料铺底料扇形闸门装置结构改进 |
| 10. | Structure improvement of the course setter
航路装定器的结构改进 |
