| 释义 |
〔gesso〕A preparation of plaster of Paris and glue used as a base for low relief or as a surface for painting.熟石膏粉：供绘画或作浅层浮雕表面用的混有胶水的熟石膏制剂〔caseharden〕To harden the surface or case of (iron or steel) by high-temperature shallow infusion of carbon followed by quenching.表面渗碳硬化法：通过高温条件下对碳的浅层注入并紧接冷却来使（铁或钢的）表面或外壳硬化 |