contour forming外形: appearance; external form bo ...成形: take shape; engender; formin ...额外形成层: supernumerary cambium layer束外形成层: extra-fascicular cambium细胞外形成: extracellular formation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:外形成形，即可在微信中查询翻译
