在智能手机领域，手机外壳材质早已从工程塑料转向金属材质，甚至已经成为百元机机身标配。在演变过程中机身材质不断变革，经历过全塑料、塑料和金属、玻璃和金属等组合方式，但最终没能阻挡全金属机身成为主流。虽...
In the field of smart phones, mobile phone shell material already from engineering plastic to metal, and even has become a $one hundred machine airframe standard. Body material in the process of evolution constantly change, experienced all plastic, plastic and metal, glass and metal combination, but ultimately failed to stop all metal fuselage into the mainstream. Though...
