A container body 201 of {TAIL ~ a transmitter side container} 20 holds {HEAD ~ an electrically conductive liquid} 402 
A container body 201 of { TAIL ~ a transmitter side container } 20 holds { HEAD ~ an electrically conductive liquid } 402
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH