| 1. | Shadowless operating lamp with 4 reflectors stand type 立式四孔无影手术灯 |
| 2. | Lengths of stitches for fastening two hole and four hole buttons 缝定两孔和四孔纽扣的针脚长度 |
| 3. | Hydraulic fluid power - four - port directional control valves - mounting surfaces 液压流体动力.四孔定向控制阀.安装面 |
| 4. | Hydraulic fluid power - two - , three - and four - port screw - in cartridge valves - cavities 液压流体动力.二孔三孔和四孔拧入式卡盘阀.孔腔 |
| 5. | Effect of four hole injector flux distribution on fuel spray and diesel engine performance 四孔喷油器流量分布对燃油喷雾及柴油机性能的影响 |
| 6. | 2 four hole diameter of valve : connect to side of instrument positive - negative pressure container 4 - 12 2阀体四孔孔径:接仪表正负压容室侧: 4 - 12 |
| 7. | Specification for dimensions of four - hole flanges for gear - driven air compressors for commercial vehicles and buses 商用车辆和公共汽车齿轮传动空气压缩机四孔法兰尺寸规范 |
| 8. | Commercial vehicles and buses ; four - hole flanges for gear - driven air compressors ; identical with iso 8719 , edition 1986 商用车辆和客车.齿轮传动的空气压缩机用的四孔法兰盘 |
| 9. | Hydraulic fluid power - four - port modular stack valves and four - port directional control valves , sizes 02 , 03 and 05 - clamping dimensions 液压流体动力.四孔模块通气阀和四孔方向控制阀. 02 , 03 , 05尺寸.夹持尺寸 |
| 10. | Hydraulic fluid power . four - port modular stack valves and four - port directional control valves , sizes 02 , 03 and 05 . clamping dimensions 液压流体动力.规格为02 03和05的四孔口模式排气阀和四孔口定向控制阀.夹紧尺寸 |