查询词典 aldehydes

Ethylene oxide, composite aldehydes, quaternary ammonium salt-type compound, surfactant, activity factor, chelator.

环氧乙烷、复合醛类、复合季铵盐类、表面活性剂、活性因子、螯合剂。

Ethylene oxide, chlorine dioxide, the compound aldehydes, quaternary ammonium compound category, surfactant, the activity factor, spices.

环氧乙烷、二氧化氯、复合醛类、复合季铵盐类、表面活性剂、活性因子、香料。

Quaternary ammonium compound category, chlorine dioxide, ethylene oxide, composite aldehydes, chelating agent, surfactant, the activity factor.

复合季铵盐类、二氧化氯、环氧乙烷、复合醛类、螯合剂、表面活性剂、活性因子。

Ethylene oxide, chlorine dioxide, composite aldehydes, quaternary ammonium salt-type compound, surfactant, activity factor, chelator.

环氧乙烷、二氧化氯、复合醛类、复合季铵盐类、表面活性剂、活性因子、螯合剂。

Ethylene oxide, chlorine dioxide, the compound aldehydes, quaternary ammonium compound category, surfactant, the activity factor, the chelating agent.

环氧乙烷、二氧化氯、复合醛类、复合季铵盐类、表面活性剂、活性因子、螯合剂。

As for the direct reactions of ketones or aldehydes and DyI_2, the formation of products can be controlled by adjusting the quantity of DyI_2, when DyI_2 is used as 1 equiv.

对于醛、酮直接与DyI_2的反应，则可以通过调节DyI_2的计量来控制产物的生成，当DyI_2的用量和醛或酮是等当量时，得到的是频那醇偶联产物；而当DyI_2的用量是两倍当量时，得到的就是相应的醇。

One-pot three component condensation reactions of aromatic aldehydes, malononitrile, and barbituric acid were described for the preparation of a series of pyrano[2,3-d]pyrimidine derivatives under ultrasonic irradiation in aqueous media without catalyst.

报道了在超声波辐射下，水相中无催化剂下通过芳香醛与丙二腈、巴比妥酸的一锅反应，合成了一系列吡喃并[2，3-d]嘧啶衍生物。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。