two polysilicon approach双层: double-deck; having two laye ...多晶: polycrystal硅: silicon法: law双层多晶硅: double level polysilicon; polysilicon, dual-layer下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:双层多晶硅法，即可在微信中查询翻译
