英语词汇“contract grades”的读音、翻译、释义、用法及例句-语文网

词汇	contract grades
释义	contract grades 契约品级又称基本品级(basic grades)，指交易所为供交割(*delivery)所订定有关商品品质规格的标准品级。
随便看	semiangle semiannual semiannually semiannular semiaquatic semiarid semiautomatic semiautomatic message switching center semibreve semicentennial semicircle semicircular semicivilized semiclassical semicolon semicompiled semiconducting semiconductor semiconductor chip semiconscious semiconsciously semiconsciousness semi container ship semidarkness semidense list

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