Now, each inclined plane 352 of the protrusion 35 of the battery 30 abuts against a corresponding wedge 254 of {HEAD ~ the claw} 252 of {TAIL ~ the cover} 20 
of
Now , each inclined plane 352 of the protrusion 35 of the battery 30 abuts against a corresponding wedge 254 of { HEAD ~ the claw } 252 of { TAIL ~ the cover } 20
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH