| http://www.w3.org/ns/prov#value | - Since the power transmission apparatus 10 according to the first preferred embodiment of the present invention has such a construction as described above, if any difference in rotational speed occurs between the first rotary shaft 8A and the second rotary shaft 8B, the rotor 12 will be rotated relative to the cam ring 11, and thereupon, working oil in the pump chambers 21, 22 and 23 is actuated by
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