variable area meter造句

例句与造句

1. The first variable area meter with rotating float was invented by Karl Kueppers in Aachen in 1908.
2. It belongs to a class of meters called variable area meters, which measure flow rate by allowing the cross-sectional area the fluid travels through, to vary, causing a measurable effect.
3. Its products include thermal mass flow controllers / meters, Coriolis mass flow controllers / meters, variable area meters ( aka rotameters ), level products, direct liquid injection systems, and more.
4. A "'variable area meter "'is a meter that measures fluid flow by allowing the cross sectional area of the device to vary in response to the flow, causing some measurable effect that indicates the rate.
5. A rotameter is an example of a variable area meter, where a weighted " float " rises in a tapered tube as the flow rate increases; the float stops rising when area between float and tube is large enough that the weight of the float is balanced by the drag of fluid flow.
6. It's difficult to find variable area meter in a sentence. 用variable area meter造句挺难的