- nonrising
- невосходящий
English-Russian astronomy dictionary. 2013.
English-Russian astronomy dictionary. 2013.
Gate valve — A Gate Valve, or Sluice Valve, as it is sometimes known, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are… … Wikipedia
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