non symmetrical sectionnonsymmetrical sectionunbalanced section不对称: asymmetric; unsymmetric; dis ...断面: section; fracture surface; p ...不对称断面轧材: unbalanced section roll bar双对称断面: doubly symmetrical section对称断面型钢: symmetrical section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:不对称断面，即可在微信中查询翻译
