China's F 1 car breaks cover : note KERS battery box and clever chromed rear diffuser.
中國最多的車探秘: 注意KERS的電池盒和巧妙的尾部擴(kuò)散器.
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Five recovery methods of chromium from chromed residues are stated in this paper.
本文概述了國內(nèi)外目前從含鉻下腳料中回收鉻的方法:堿法、酸法、氧化法、焚燒法.
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Hard - chromed piston rod with micro - grooves , increasing the rigidity and reducing friction, keep better lubrication action.
活塞桿微裂紋鍍硬鉻, 增因硬度減少磨擦, 保持油膜潤滑效果值.
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