| 摘要 |
A gas flow rate indicator comprises a container 10 having an inlet 12 and an outlet 14. The container has an internal passage through which gas under pressure may flow from inlet 12 to outlet 14. The container also has indicator means, in this case a rotor 16, within the passage and which is responsive to the flow of gas through the passage. The container has a viewing port 15 through which the response of the indicator means 16 to the flow of gas can be observed. |
