单词	gear crown
释义	gear crown 齿轮冠
随便看	piston cottar piston cotter piston crown piston crown ablation piston crown contours piston cup piston cup expander piston curl piston cylinder piston-cylinder apparatus piston-cylinder assembly piston-cylinder balance piston cylinder balance piston damper piston damping chamber piston deep well pump piston deep-well pump piston depositor piston design piston details piston diameter piston diameter at ring lands piston-diaphragm pump piston directivity function piston disc 成则为王，败则为寇成则为王，败则为虏成则为王，败则为贼成千上万成千成万成千累万成千论万成双作对成双成对成名成家坦腹东床坦荡坦言坦诚坦途坦陈坦露坨坨子坩