一级品

The main products are sodium bichromate, chromium hydroxide,chromic anhydride, chrome oxide green, basic chrome sulfate , potassium dichromate etc. Tested by the authoritative organization, all the products meet with the standard of GB.

主导产品有重铬酸钠、铬酸酐、氧化铬绿、碱式硫酸铬、氢氧化铬等，产品经国家化学产品监督检验部门年检、统检、抽检，均优于国家标准规定的优级品、一级品、合格品质量等级指标。

I'm here to ask about Melon Seeds,first and second quality/ the tea of various quality/your Cow Hides.

我来此询问有关一级品和二级品瓜子／各种品质的茶叶／你们的牛皮。

The cuprous oxide powder 95% in purity and consonant with the state stand...

在此条件下，可制得符合国标GB1620-79的氧化亚铜含量在95%的一级品。

The pharmacologic data and chemical data were analyzed by stepwise regression analysis and 16 characteristic chemical variates were extracted, the quality of Evodia samples were graded in a series of four according to both sets of the pharmacologic data. A quality grading assessment scheme of Evodia samples by chemical ANN pattern recognition was then proposed and the results was satisfying.

依据药理实验结果将样品的质量分为优级品、一级品、合格品、劣品四个等级，对药理数据和化学数据进行逐步回归分析，选取16个有效化学特征变量，用人工神经网络方法建立起可对吴茱萸样品进行质量分级评价和定量预测药效的模型，其结果令人满意。

The results showed that the optimum operating parameters for steaming treatment were as follows: temperature was 95℃, time was 60 s, for tunnel-type drying production line, the loadage was 5.0 kg/m2, hot air temperature was 85℃, wind speed was 1.5 m/s, and for industrial microwave drying production lines, material thickness was 15 mm, drying power was 16 kW, drying time was 90 s.

结果表明，在蒸汽温度95℃，汽蒸时间60 s；隧道式干燥生产线装载量5.0 kg/m2，热风温度85℃，风速1.5 m/s；微波干燥生产线铺料厚度15 mm、干燥功率16 kW、干制时间90 s的条件下，所生产的干制黄花菜经农业部食品质量监督检验测试中心检测其感官、理化和微生物指标均达到了《无公害食品—干制金针菜》NY5186－2002所规定的一级品标准。

The experiment products met the specification of HG2340-92 in terms of its first class tribasic lead sulfate.The optimum leaching process parameters were as follows:NaCl concentration 5.5mol/L,leaching temperature 100℃,leaching time 120min,CaCl_2 con...

采用此工艺在实验室制得符合HG2340-92标准一级品要求的产品，并确定浸出过程的最佳工艺参数是：NaCl溶液浓度≥5.5mol/L，浸出温度≥100℃，浸出时间120min，CaCl2浓度0.3mol/L，HCl浓度0.15mol/L，液固比8∶1；合成三盐基硫酸铅的最佳工艺条件为：PbSO4∶NaOH=4∶6，液固比≈2∶1，室温反应时间60min，溶液的终点pH8.4~8.8。

Producing high-quality para-aminophenol by hydrogenation lays the foundation for producing high-quality raw medicine of paracetamol. The construction of the project will be beneficial to exploit the market of first-grade products both at home and abroad and will certainly lead to a revolutionary change in domestic production of paracetamol.

加氢法高品质对氨基苯酚为生产高品质的扑热息痛原料药奠定了基础，项目的建设更加有利于开拓国内外一级品市场，也必将引起国内扑热息痛生产的革命性变化。

The solution is to use high-quality starch, corn starch, industrial-grade products should be adopted.

解决办法是使用高质量的淀粉，若是玉米淀粉，宜采用工业一级品以上。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。