词汇	研省
释义	研省 yán shěng研究省察。
随便看	pistol wound pistomesite pisto mesite piston Piston piston acceleration piston accelerator piston accumulator piston acoustic source piston action Piston action of moving vehicles piston action of train piston actions analysis piston actuated valve piston-actuated valve piston actuator piston airflow piston air motor piston air valve piston air washer piston alloy Piston and Axle journal grinding machines piston and connecting rod piston and connecting rod assy piston and connecting rod mechanism