resin-coated英'rezɪnk'əʊtɪd美'rezɪnk'əʊtɪdCOCA²²⁴¹⁹⁰ 基本例句 树脂涂层的,树脂包衣的 The surface defects formation mechanism of steel castings produced with resin-coated zircon sand mould was described, and their prevention measures were discussed. 论述了锆砂覆膜砂铸钢件表面缺陷的形成机制,就该缺陷的防治措施进行了探讨。 chemyq