Category: Autos
Created by: shirleysunny
Number of Blossarys: 5
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引导活塞在其中进行直线往复运动的圆筒形金属机件。工质在发动机气缸中通过膨胀将热能转化为机械能;气体在 ...
By: shirleysunny
汽车保险杠是吸收和缓和外界冲击力、防护车身前后部的安全装置。许多年以前汽车前后保险杠是用钢板冲压成槽 ...
Mompetition is the one-up rivalry that moms play ...
Category: Entertainment