例句與造句

1. The glass tube of a mercury relay must be mounted near-vertically.
2. Initial products included glass apparatus for medical technology and mercury relays for industrial applications.
3. The mercury relay thus allows for switching of higher currents with a small control current for a large number of cycles.
4. Owing to environmental considerations about the toxicity of mercury, mercury relays are mostly obsolete though modern encapsulated units still have applications.
5. Mercury is used in thermometers, barometers, manometers, sphygmomanometers, float valves, mercury switches, mercury relays, fluorescent lamps and other devices, though concerns about the element's toxicity have led to mercury thermometers and sphygmomanometers being largely phased out in clinical environments in favor of alternatives such as alcohol-or galinstan-filled glass thermometers and thermistor-or amalgam for dental restoration in some locales.
6. It's difficult to find mercury relay in a sentence. 用mercury relay造句挺難的