Assertion: valve's position | /r/CreatedBy | pressing portion
Facets:
Source sentences:
text: In this modified example, a notch 267 is formed in a top wall surface 266 of the valve support member 260, at a position corresponding to the pressing portion 275, whereby the amount by which the rubber valve 262 fitted to the groove 265 of the top wall surface 266 is pressed down by the pressing portion 275 is increased.