As skin ages and loses its elasticity, the skin stops springing back to its line-free state, and these grooves become permanently etched on the face as fine lines and wrinkles.
当皮肤老化失去弹性的时候，面部线条就不太容易弹回到无痕状态，皮肤下的凹槽就会永久性的在你的脸上形成，变成细小的线条和皱纹。
Zinco a line or coarse screen half-tone block etched on zinc for letterpress printing. see zinc engraving.
线条锌版活版印刷用的线条或粗网半色调凸版。参阅锌电版。
This production line is made of bottle washing machine, acid etched machine and dryer. ect.
该生产线由洗瓶机、蒙砂机、烘干机等机器组成。
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