查询词典 ortho-hydrogen

We described that the nitro group is a stronger electron withdrawing and meta activating characters than the imide group, the amino and hydroxy are both electron donating groups and had ortho, para activating characters. The methyl group might have a steric hindrance effect in this reaction. Our results indicated that methyl group at the ortho position of the amino group on the benzene ring, the steric hindrance effect became stronger.

另一方面，由产率上的结果来看，可以得知硝基为强力的拉电子基团，会减少邻位和对位胺基的电子密度比间位多；而氢氧基与胺基是供电子基团，会增加邻位和对位胺基的电子密度比间位多；甲基取代对反应则只有立体障碍的影响，而且与反应的氨基成邻位存在下影响最大。

In experimental research, the S-L-E of three groups of isomers was determined by using differential scanning calorimetry , and more than two hundred reliable data were obtained. The isomers include meta-, ortho-, and paradichlorobenzene, meta-, ortho-, and para-dibromobenzene and meta-, ortho-, and para-nitro-benzoic acid.

在实验的研究中，采用差式扫描量热测定了邻、间、对二氯苯，邻、间、对二溴苯及邻、间、对硝基苯甲酸等三组同分异构体物系的固液相平衡关系，共得到二百多个可靠的数据。

The para-/ortho- product isomer ratio is 6.2 for the nitration of chlorobenzene at 18℃ for 8h with n/n(NH4NO3)=5. The para-/ortho- product isomer ratio is 14.0 for the nitration of bromobenzene at 0℃ for 8h with n/n(NH4NO3)=5. The pars-product, p-nitrobromobenzene, from the nitration of bromobenzene in [HSO4] under 0℃ precipitates with 98% purity, which facilitates the separation of the pure isomert.

其中氯苯在18℃下反应8h，三氟乙酸酐/硝酸铵为4时产物的对邻比达到6.2，而溴苯在0℃下反应8h，TFAA/硝酸铵为5时产物的对邻比可达到14.0，并且生成的对硝基溴苯可以从反应液中析出，得到对硝基溴苯含量为98%的产物。

It is not advisable to eat grape fruit and drink based on grapes while using Ortho Evra Patch.

这是不可取的葡萄吃水果，喝葡萄的基础上同时使用Ortho Evra贴片修补程序。

There are occasions where the user experience dizziness while they're applying Ortho Evra Patch to their skin.

有些时候，头晕的用户体验，当他们申请 Ortho Evra贴片修补他们的皮肤。

So we are looking for ISO, ORTHO, TPA, THPA type of UPE which has a competition price.

因此我们正在寻找，用于 ISO，ORTHO，TPA，THPA 类型的不饱和聚酯，有一个有竞争力的价格。

The test was developed by Ortho Biotech Products L.P. and has been cleared by the U.S. Food and Drug Administration.

该检测产品由Ortho生物产品公司(Bridgewater， NJ， USA)研制开发的，并已经获得了美国食品药品管理局的许可。

OrthoSubstituted phenols gave the para-para-coupling products and para-substituted phenols gave the ortho-ortho-coupling ones, while hindered phenol gave the corresponding oxidative coupling product.

该氧化偶联反应的反应条件温和、产物易于分离、收率高，可作为有机合成中某些碳-碳键形成的新方法加以应用。

The hydroxyl group is usually ortho directing but in the case of salicylaldehyde, the chlorine stom enters para to the hydroxyl group and not in the other ortho position.

羟基通常是邻位的指挥羟基的帕拉和不是另一邻位的在自己的位置上但是氯stom在水杨醛的情况上登记。

The result shows that the purification efficiencies of ammonia-nitrogen and ortho-phosphate by immobilized algae in a stationary phase are higher than that in an exponential phase; the starvation treatment increases the removing rates of ammonia-nitrogen and ortho-phosphate, cells of Scenedesmus starved for 48 hours can obtain higher NF4(superscript +)-N and PO(superscript 3- subscript 4)-P removal efficiencies than starved for 48, 72, 24 and 0 hours respectively.

结果表明：静止初期藻细胞对NH4-N和PO(上标 3-下标 4)-P去除率比指数末期高，处理5d后，静止初期细胞对NH4-N和PO(上标 3-下标 4)-P的去除率分别为76.7%及91.7%，指数末期细胞氮、磷的去除率分别为75.4%和88.7%；饥饿处理可明显提高藻细胞对NH4-N和PO(上标 3-下标 4)-P的去除效率，藻细胞饥饿时间对NH4-N和PO(上标 3-下标 4)-P去除率的影响大小依次为48h，72h，24h，0h。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。