hydraulic coverage

[Le tenebreux]

again pumps..)

Пожалуйста, помогите перевести hydraulic coverage в след. контексте:

operating region
portion of a pump's hydraulic coverage over which the pump operates

allowable operating region
portion of a pump's hydraulic coverage, over which the pump is allowed to operate, based on vibration within the upper limit of this international standard or temperature rise or other limitation; specified by the manufacturer

Заранее большое спасибо

[Gannesha]

Может натолкнет на мысль...

http://www.amarinth.com/products/adetail.php?Cat=Chemical Pumps&Prod=T Series&Sec=Hydraulic coverage

[Gannesha]

http://www.google.com.ua/search?hl=uk&q=what+is+hydraulic+coverage&meta=