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Of various biaryl alkynes under mild condition by an easy-to-handle complex 4 in unpurified solvents of regent grade quality.

此反应可将两当量的DMAD分子和一当量各式各样双芳香环取代的乙炔分子在空气下进行一个环化反应,并且可使用未经纯化过的试药级溶剂。

We want to buy Bio-Technology Products, Reagents and Supplies, Tooth Paste and Tooth Brush

我们要采购生化技术产品,试药和用品,牙膏和牙刷

Continue until a final addition of Dithizone Titrant is green in color after shaking.

继续,直到双硫腙滴定试药的最后的加法是绿色的在颜色在以后shaking。

MERCURY SOLUTION FOR STANDARDIZING DITHIZONE TITRANT : Transfer 2.0 mL of Mercury Stock Solution to a 100-mL volumetric flask, and dilute with 1 N sulfuric acid to volume.

规范化的双硫腙滴定试药MERCURY解答:调动2.0 mL水星 Stock解答到100ml容量瓶,和用1 N硫酸稀释对容量。

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Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严,以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆,把帆卷起,系住。

Therefore, positively advances the interest rate marketability reform is one of current our country finance reform important tasks.

因此,积极推进利率市场化改革是当前我国金融改革的重要任务之一。