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????????: ????? ? ???????: ????? ???, English version    ???, Chinese version ?????, Espanol version  Siphon 1 A pipe or tube fashioned or deployed in an inverted U shape and filled until atmospheric pressure is sufficient to force a liquid from a reservoir in one end of the tube over a barrier higher than the reservoir and out the other end . 2? ????????,?????????????????,????,???????????,????????,???????? ?????????????,??????????????????(F=(Patm-PH2O)*A),???????????????,?????? ??????????????,? ?,???????????????????????? ? 3??????????,?????????? 4????????,????????????,??????????,?????????,???????????,? ?,????????????,???????? ? ??1:??????????????? ? ??2:???????,?????????? ??Basic Ebb and flow operation    ??? 1 As liquid fills the dosing tank, the level of liquid in the tank and inside the siphon bell rise at the same rate .  (The siphon bell is open at the bottom). The siphon is vented to the atmosphere through the vent piping .  This rising act...