1. Through the air lock she went, down the metal steps, and out on to the Moon's dusty surface.

2. Finally, they were let through an air lock guarded by massive metal doors into the reactor structure.

3. Emerging from this relatively low air lock they find themselves on the land side in a high-ceilinged hall.

4. The interlock is the essential system of air lock to prevent the door which controlled open at same time.

5. To analyze reasons for air lock, make out effective measures and thoroughly eliminate the air lock.

6. An air lock and a canopy will be added to the visitors' entrance.

7. Gripping a hand rail, she waited for the door of the air lock to open.

8. It may not be adjusted or working correctly or as it is operated by water temperature, it may be air locked.

9. This model comprises of a radial, centrifugal fan cyclone with surround inlet Of high efficiency, expansion cone , and rotary valve air lock.

10. Special connector is supplied with float drain to prevent air lock.

11. The first UL101 was delivered to the International Space Station in July 2001 and was used to test the newly installed air lock with great success.

12. The stable and safe operation of the ammonia plant is severely affected by the air lock ammonia cooler.

13. The solution of problems such as water hammer, hard to dispose the noncondensables, air lock and selection of steam trap were discussed to save energy, protect environment and lower the cost.

14. Points out the main causes of the fault namely fouling, air lock, outdoor air temperature and building orientation.