Physical features : monoclinic , lolorless for excellent , lolorless or light yellow crystal for first grade 物理状态:单斜晶系结晶,优等品为无色透明体，一等品为无色或带淡黄色晶体。
A - we ’ ve already gone over your quotations . the prices of some of the merchandise are really hard to accept 你询价单上所列的产品都是一等品。我们也有不同等级的产品，但价格是完全不一样的。
I told you that we want first class goods . so the quality , specification and price are clarified in our contract . do you remember those details 当初我说过要一等品。所以合同里将质量、规格和价钱都写的很明确。你还记得吗？
B : i told you that we want first class goods . so the quality , specification and price are clarified in our contract . do you remember those details 当初我说过要一等品。所以合同里将质量、规格和价钱都写的很明确。你还记得吗？
At present , many of the names of materials are coined by importers at will so that one material often has difference names , causing serious market chaos 就木地板而言，目前市场上各类品牌的等级一般有两种，一种是合格品，另一种是一等品。
Therefore , when buying floorboards , consumers should carefully ask about the commodity name of the product in question under state standard to avoid any misunderstanding 市场上超过90 %的品牌达到的是合格品标准，而达到一等品的标准品牌则不足10 % 。
Subject to satisfaction of the requirements for appearance , in so far as the stability of wood is concerned , the smaller the dimensions , the smaller the deformation 要达到合格品的技术要求一般可以使用多种材质，而要达到一等品的技术要求，则必须使用a材。
The results showed that the dying property could be effectively improved by selecting appropriate parameters mentioned above , the full package rate was increased , and the economic benefit was considerable 结果表明：选择合适的工艺条件可以有效提高纤维染色一等品率，为企业增加效益。
Therefore , consumers should choose short and narrow wood floorboards as far as possible to minimize any deformation , namely the bending , twist , crack , shrinkage and humping of floorboards 因此， a材的使用寿命远高于b材和c材。以品质精良而著称的丰盛地板，所有六大系列产品均达到一等品标准，这在行内也是非常罕见的。
According to standard jc474 - 1999 " water - repellent admixture for mortar and concrete " , properties of the admixture were measured and they all satisfied with the specified standard of first quality product 依据jc474一1999 《砂浆、混凝土防水剂规定方法》 ，对所配制的外加剂测定，其各项性能符合该标准中规定的一等品的要求。
