例句與造句

1. Mercury arc valves for HVDC were, therefore, often constructed with four or six anode columns in parallel.
2. The anode columns were always air-cooled, with the cathode tanks either water-cooled or air-cooled.
3. These valves, supplied by English Electric each had six anode columns in parallel and were the most powerful mercury arc valves ever built.
4. Each valve was rated at 1000 A dc and had four anode columns in parallel, with air cooling used for both the anodes and cathodes of the valve.
5. Usually, each arm of each six-pulse bridge consisted of only one mercury-arc valve, but two projects built in the former Soviet Union used two or three mercury-arc valves in series per arm, without parallel connection of anode columns.
6. It's difficult to find anode column in a sentence. 用anode column造句挺難的
7. Mercury arc valves were built with ratings of up to 150 kV, 1800 A . The last ( and most powerful ) mercury arc system installed was that of the Nelson River DC Transmission System in Canada, which used six anode columns in parallel per valve and was completed in 1977.
8. A number of adaptations were needed to make such valves suitable for HVDC, in particular the use of anode voltage grading electrodes to minimise the risk of " arc-back " at the very high reverse voltages experienced in HVDC . Much of the pioneering work in this area was performed in Sweden by Dr Uno Lamm, widely considered the  Father of HVDC and in whose name the IEEE introduced the  Uno Lamm Award for outstanding contributions in the field of HVDC . The very long anode columns needed for high voltage applications limited the current which could safely be carried by each anode, so most mercury-arc valves for HVDC used several ( most often, four ) anode columns in parallel per valve.
9. A number of adaptations were needed to make such valves suitable for HVDC, in particular the use of anode voltage grading electrodes to minimise the risk of " arc-back " at the very high reverse voltages experienced in HVDC . Much of the pioneering work in this area was performed in Sweden by Dr Uno Lamm, widely considered the  Father of HVDC and in whose name the IEEE introduced the  Uno Lamm Award for outstanding contributions in the field of HVDC . The very long anode columns needed for high voltage applications limited the current which could safely be carried by each anode, so most mercury-arc valves for HVDC used several ( most often, four ) anode columns in parallel per valve.