关门

urination ; micturition ; pass(void) urine ; urinate ; micturate

high pass filter

high-pass filter【电子】;highpass filter【电子】

by-pass

by-pass check valve (free-wheeled checkvalve)

by-pass check valve (free-wheeled check valve)

first pass effect of hepar

by-pass accumulator【电】;secondary cell【电】