词汇	provide background
释义	provide background 提供背景
随便看	thrust bearing rating thrust-bearing resisting plate thrust bearing runner thrust bearings thrust bearing safety device thrust bearing seating thrust bearing segment thrust bearing shell thrust bearing shim thrust bearing shoe thrust-bearing shoe thrust bearing shoe valve thrust bearing stand thrust bearing support thrust bearing support, elastic thrust bearing temperature thrust bearing, thrust block thrust bearing trip thrust bearing wear THRUST BEARING WEAR DETECTOR TEST thrust bearing wearing thrust-bearing wear trip thrust bearing with aligning seat thrust bearing with Teflon layer thrust bears