醚
- 与 醚 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Objective To investigate the effect of cornel iridoid glycoside on thrombosis and blood coagulation.
目的 观察山茱萸环烯醚萜苷(comel iridoid glycoside, CIG)对血栓形成和凝血功能的影响。
-
ObjectiveTo study the technological parameters of purification of total glycoside from Cornus officinalis with macroporous resin.
目的应用大孔吸附树脂对山茱萸中环烯醚萜苷类成分进行分离纯化,考察大孔树脂纯化山茱萸总苷的工艺参数。
-
The experimental data indicated that nine kinds of the above studied pyrethroids containing isoxazole were active against cabbage worm and cotton aphid.
初步的试验表明,其中9个异噁唑醚菊酯化合物具有较强的生物活性,为新型拟除虫菊酯的创制提供了参考依据。
-
Cottonseed oil and cottonseed meal with good quality could be obtained from cottonseed kernel by a two - phase extraction system which was composed of petroleum ether and methanol.
采用石油醚和甲醇的双液相溶剂浸取棉仁可以得到高质量的棉籽油和棉籽粕,棉仁中的棉酚大部分被甲醇溶解。
-
As an important industrial solvent,it is capable to dissolve cellulose ether, cellulose ester, nitrocellulose ,alkaline base dyestuff, PVC, polyvinyl acetate, polymethylmethacrylate, polystyrene, coumarone resin, 100% phenol resin, modified phenol resin and various natural resins.
能溶解纤维素醚、纤维素酯、硝化纤维素、碱性染料、聚氯乙烯、聚醋酸乙烯酯、聚甲基丙烯酸甲酯、聚苯乙烯、香豆酮树脂、100%酚树脂、改性酚树脂以及多种天然树脂,是一种重要的工业溶剂。
-
The present business card printing and membership card making business in the widely-used or traditional solvent-based inks, solvent-based inks from paints, solvents, binders, fillers and adjuvant, solvent used mainly aromatic hydrocarbons, esters, ethers, flavoniod etc, these toxic solvent, it finds that, in the packaging of food, medicines, and cosmetics, and so on; and a volatile, with a stronger hen'egg cretonne, will pollute the environment and the health of workers; solventing and imflammable, there is the production of a security risk.
目前制卡和会员卡制作行业中广泛使用的还是传统的溶剂型油墨,溶剂型油墨由颜料、连结料、溶剂、填充剂和辅助剂组成,所用的溶剂主要是芳香烃类、酯类、酮类、醚类等有机溶剂,这些溶剂大都具有毒性,会污染所包装的食品、药物和化妆品等物品;且具有挥发性,有较浓的刺激性气味,会污染环境并影响工人的身体健康;有机溶剂易燃易爆,存在着生产安全隐患。
-
A jewel in the crown of the PES series both past and present.
宝石的王冠上的聚醚砜系列过去和现在。
-
In the titration experiment of NMR and IR spectroscopy, we can understand how sensors binding with metal ions: the two carbonyl group and crown ether group cooperated in binding with metal ions. Furthermore, by altering the "oxygen" atoms of crown ether to "sulfur", we can change the binding affinity to the soft metal: cupper. It shows 60-fold enhancement of fluorescence.
在化合物2中,我们引进了硫原子在冠状醚中,则应对电子密度较低之金属有较好的结合能力,实验结果显示了此分子对铜离子有相当好的选择性和结合能力,萤光增加可达60倍;同时由红外光吸收光谱和核磁共振光谱滴定实验可确知,香豆素衍生物上的两个羰基对金属离子的选择性及结合上扮演相当重要的角色。
-
Under the microwave radiation, makes the catalyst with the potassium iodide,The sodium hydroxide makes the neutralization agent, synthesized the phenmethyl -2- naphthyl ether, take 2- naphthol and the chlorination animal pen as the raw material, Uses the single factor cut-and-try method, To a reactant mole of ratio, the catalyst and the solvent amount used, the microwave power, the radiation time and so on have conducted the research to the product receiving rate influence.
在微波辐射下,以2-萘酚和氯化苄为原料,用氢氧化钠作碱剂,碘化钾作催化剂,水-DMF为溶剂合成了苄基-2-萘基醚;采用单因素实验法,对反应物的摩尔比、催化剂及溶剂用量、微波功率、辐射时间等因素的影响进行了研究。
-
Morphology of the modified cyanate ester resin system toughen ed by polyetherimide was investigated.
对聚醚酰亚胺增韧改性氰酸酯树脂体系的断面形态和冲击韧性进行分析,并对改性氰酸酯树脂体系的介电性能进行表征和分析。
- 推荐网络例句
-
But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
-
Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
-
Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。