{HEAD ~ The inner surface} of {TAIL ~ a power supply side connector} is covered with a circular waterproofing packing 
of
{ HEAD ~ The inner surface } of { TAIL ~ a power supply side connector } is covered with a circular waterproofing packing
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH