To ensure that only one-tenth of the output of injection pump 118 is injected to the washer/disinfector 10, it is necessary that the pressure within cavities 216, 218 be the same.

• 为了确保只有十分之一的注射帮浦118输出被注入洗涤消毒器10，腔体216,218内的压力必须一样。