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1. Oxford Dictionary

   main bearing

   • n.
     one of the bearings in an engine on which the crankshaft rotates

   • noun: main bearing, plural noun: main bearings

2. • 釋義

   n.

   名詞

   • 1. one of the bearings in an engine on which the crankshaft rotates an inspection revealed that one of the main bearings had failed
3. • 更多解釋

   main bearing

   • n.
     one of the bearings in an engine on which the crankshaft rotates: an inspection revealed that one of the main bearings had failed

   Oxford American Dictionary