【机械工程】隔膜密封【机械工程】隔膜封闭

regulate the center and disinhibit the diaphragm

diaphragm wall (slotted wall)

diaphragm

diaphragm

iris diaphragm【光】;iris stop【光】;

reciprocating diaphragm pump

superior fascia of urogenital diaphragm,

heat lying depressed in the chest and diaphragm