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