1. The pop was from an airgun, not a bullet, being fired.

2. Airgun is an important active seismic source.

3. High-pressure air is needed for airgun source operation.

4. The paper introduced the basic structure of BOLT airgun, SLEEVE airgun and G airgun, expounded their work principle, analyzed the common trouble of airgun in operation and gave solution.

5. Airgun pellets don't usually penetrate skin but can do so at close range.

6. Each airgun varies slightly in the way it handles different pellet types.

7. The paper briefly expounded the trouble styles and airgun source equipment, and introduced the field management measures of airgun source.

8. I learned on the Vintage Airgun Forum that it was made by Peipers in Belgium in the late 1940s.

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9. He was standing in front of the door with an airgun in hands and a bag of rice on the shoulder.

10. He was standing in front of the door with an airgun in hands and a bag of rice on the shoulder. He must be the owner!

11. Three mechanics are involved in changing a wheel, one removing and refitting the nut with a high-speed airgun, one removing the old wheel and one fitting the new one.

12. Whenever I come across something nice like this, I ask myself, If I stumbled across this gun at an airgun show and had the money, would I buy it?

13. The speed of a heavier pellet is lower in the same airgun versus a lighter pellet.

14. Two weeks after opening, the exhibition was a sad sight as most of the faces had been heavily damaged by airgun slugs , with some destroyed beyond recognition.

15. It sets a very successful example for complicated TZ project operation that the recording system integrates with the navigation system and airgun controller system in S-49 project.