planch.et
n.（名词）A flat disk of metal ready for stamping as a coin; a coin blank.硬币坯，金属坯：打上戳记后用做硬币的一种水平金属圆片；硬币坯A small shallow metal container in which a radioactive substance is deposited for measurement of its activity.样品皿：用于存放放射性物质以测量其活性的小而浅的金属容器
来源：[Diminutive of] planch [flat plate, slab] [] planch的小后缀 [平的碟子，厚板] from Middle English plaunche [plank] 源自 中古英语 plaunche [厚板] from Old French planche 源自 古法语 planche from Late Latin planca 源自 后期拉丁语 planca from feminine of Latin plancus [flat] * see pl3k- 源自 拉丁语 plancus的阴性词 [平的] *参见 pl3k-
