{HEAD ~ a transmission cover member} sealingly engaging {TAIL ~ at least a portion} of the lateral wall of said case main body to cover the recessed portion thereof in a fluid tight manner; and 
sealingly engaging
{ HEAD ~ a transmission cover member } sealingly engaging { TAIL ~ at least a portion } of the lateral wall of said case main body to cover the recessed portion thereof in a fluid tight manner ; and
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH