this paper illustrates the reaction of larch bark tannin extracts with sulfite and sodium hydroxide and the tests of its solution viscosity, mw-distribution and thin-layer chromatography.

  • 摘要通过对落叶松栲胶进行亚硫酸盐和氢氧化钠的改性,则定其溶液黏度,用不同溶剂进行分级和薄层色谱。
  • 来源:provided by jukuu更新时间:2026-07-13 01:01:29

  • 重点词汇
  • viscosityn.<术>黏稠;黏性;粘质;粘性;
  • extractsn.摘录( extract的名词复数 );引用;提炼物;浓缩物;
  • larchn.落叶松(木材);
  • chromatographyn.套色版;层析法;
  • theart.这个;指已提到或易领会到的人或事物;指独一无二的、正常的或不言而喻的人或事物;用以泛指;与形容词连用,指事物或统称的人;用于姓氏的复数形式前,指家庭或夫妇;(指特定用途的事物)足够,恰好;每,一;当前的,本,此;(重读,表示所指的为知名或重要的人或事物)
  • illustratesv.给…加插图( illustrate的第三人称单数 );说明;表明;(用示例、图画等)说明;
  • barkn.吠声;树皮;短促响亮的人声;
  • solutionn.解决办法;溶解;答案;
  • 相关例句
1、

comparison of surface activity of sulfonated components from the waste of larch bark tannin production

落叶松树皮栲胶废渣各组分及其磺化产物的表面活性对比研究

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2、

modification of larch bark tannin extracts and property of their solution

落叶松栲胶的改性及其溶液的性质表征

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3、

a typical composition of the plugging agent is: larch tannin extract 6%, a phenol formaldehyde compound 4% and balance water.

该堵剂的典型配方为:栲胶6%、PF混合物(苯酚和甲醛)4%、其余为水;

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4、

application of geochemical fingerprint techniques in dynamic monitoring of petroleum reservoirs

地球化学指纹技术在油藏动态监测中的应用

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5、

corrupt officials often hide ill-gotten wealth by putting it in the names of family members.

腐败的官员经常通过家庭成员的名义隐藏非法所得。

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6、

he despises ill-gotten wealth, but does not absolutely despise interests.

他拒绝不义之财,又不绝对重义轻利。

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7、

multiple spindle vertical internal honing machine

多轴立式内圆珩磨机

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8、

the grey forecasting method for road accidents in equal interval series

道路交通事故等间隔序列的灰色预测方法

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9、

searching for a method in computing the average in class interval series

对组距数列计算平均指标的方法探讨

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10、

results: this technology resolved the loose quality and lower content of sodium bicarbonate of the tablet.

结果:该工艺解决了松片及碳酸氢钠含量偏低问题。

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11、

various types of devices a single type of technology selected, the lack of balance;

各项器械技术选编类型类型单一,缺乏均衡性;

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12、

i can speak from experience here when i say that a marriage can suffer because of a lack of balance.

我在此要说些经验之谈,一段婚姻会因为失衡而遭受痛苦。

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13、

yao's problem on rebounds comes from lack of balance.

姚明篮板问题的暴露打破了这种平衡。

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14、

disharmonies - mental, spiritual, emotional and physical are caused by a lack of balance.

心理、精神、情感、身体方面出现了不和谐,原因就在于缺乏平衡。

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15、

they may include lack of balance, low energy levels, trouble with speaking clearly and even blindness.

他们可能会出现以下症状:身体失去平衡,乏力,说话吐词不清,甚至是失明。

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16、

there is a lack of balance between investment and consumption, with the investment rate still running too high.

投资与消费关系不协调,投资率持续偏高;

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17、

you're risking some inflation. and it creates the very lack of balance that you talk about.

这样就会有通胀的风险,造成了你刚刚提到的缺乏平衡性。

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18、

one thing i notice in a lot of couples who come through my door is a lack of balance in their relationship.

我注意到了走进我办公室门的许多夫妇都是在关系上缺乏一种平衡。

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19、

with point of view of property right theory, lack of balance with equity and control rights become basic reason on expropriation.

产权理论认为所有权与控制权的不对称是造成利益侵占问题的根本原因。

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20、

that lack of balance in the economy now appears to be holding back recovery.

英国经济的缺乏平衡现在似乎正阻碍其恢复。

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