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- Acetylation between alcohol and benzoyl oxide was carried out using ZnBr2 as a Lewis acid catalyst in solvent-free condition. Some structures were characterized by NMR and IR. 以溴化锌为催化剂,在无溶剂条件下实现了醇与苯甲酸酐的酰化反应,部分产物经NMR和ir表征。
- How can you get rid of this oxide coating? 你们该怎样除去这些氧化皮?
- A mixture of black manganese oxide minerals. 硬锰矿一种黑色氧化锰矿的混合物
- A gaseous anesthetic, such as nitrous oxide. 气体麻醉剂一种气态的麻醉剂,如一氧化二氮。
- benzoyl oxide 苯甲酸酐
- Benzoyl peroxide(BPO) was used as initiator. 通过傅立叶红外光谱对接枝物进行定性表征;
- In the absence of heat, I think, no oxide coating should form during rolling. 在无加热的条件下,我想,轧制过程中不会生成鳞皮吧!
- An oxide containing three oxygen atoms per molecule. 三氧化物每个分子中含有三个氧原子的氧化物
- What will happen to this oxide coating? 该怎么处理这一层氧化皮呢?
- Occasionally red lead is added to the leady oxide. 有时将铅丹加到铅粉中。
- The nitride on oxide layers remains intact. 氧化物表层上面的氮化物保持原状不动。
- The detector tube is filled with nitric oxide. 检测管中充满了氧化氮。
- Objective: To examine the stability of Benzoyl Peroxide Cream. 考察过氧苯甲酰乳膏在贮存过程中的稳定性。
- To combine with oxygen; make into an oxide. 氧化与氧化合;使成为氧化物
- In recording, iron oxide on magnetic tape. 磁记录技术中磁带上的氧化铁层。
- Copper oxide is made up of copper and oxygen. 氧化铜是由铜和氧组成的。
- A black mineral consists of basic manganese oxide. 一种黑色矿物,由基性氧化锰组成。
- Preparation of silicon oxide nanoparticle. 纳米二氧化硅粉体的制备。
- The copper oxide is reduced in this process. 在此过程中,氧化铜被还原。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries