| 1. | 4long life with three minutes delayed protector
4三分钟延时保护装置，延长使用寿命。 |
| 2. | Seats are hardfaced with ss 410 and welded - in for lifetime service
阀座用410不锈钢进行硬面，通过焊接装配延长使用寿命。 |
| 3. | Their lifetime can be prolonged if they are repaired with cast tungsten carbide powder
采用铸造碳化钨修补后，可以延长使用寿命。 |
| 4. | C 、 the lubrication system guatantees the precision of the machine and lengthensservice life
润滑系统确保机器精密度和延长使用寿命。 |
| 5. | C 、 the lubrication system guarantees the precision of the machine and lengthends service life
润滑第统确保机器精密度和延长使用寿命。 |
| 6. | Reliability of valve operation affects service life and ease of inspection and maintenance
阀门工作的可靠性延长使用寿命，减少检查和维护。 |
| 7. | Ru bber roller and gear can extend its life , which can guarantee the accuracy of each wire
胶轮、齿轮延长使用寿命，充分保证每条细线的加工精度。 |
| 8. | Standard specification for preformed retroreflective pavement marking tape for extended service life
延长使用寿命的预制反射路面标志带的标准规范 |
| 9. | The molded ptfe ring is bonded into a groove in the disc face for maximum service life
这种模铸聚四氟乙烯环粘合在阀瓣表面的槽内，最大限度延长使用寿命。 |
| 10. | The molded ptfe ring is bonded into a seat ring groove in the face for maximum service life
这种模铸聚四氟乙烯环粘合在阀座表面的阀座环槽内，最大限度延长使用寿命。 |
