上标

The total amount of N loss through ammonia volatilization was N 0.37~3.04kg hm^(-2), accounting for1.31%~3.69% of the total N applied to Winter Radish The total N loss through ammonia volatilization enhanced with the increase in N application rate (p.05) and ex-pressed as y=0.1576e(superscript 0.0146x) and y=0.1826e(superscript 0.0112x) respectively.

不同施氮处理，春季累计氨挥发量为N0.67~5.16kg hm^(-2)，占施入肥料N的0.74%~2.24%；秋季累计氨挥发量为N0.37kg~3.04kg hm^(-2)，占施入肥料N的1.31%~3.69%。红壤旱地春秋二季氨挥发量均随施N量的提高而指数递增，其关系式分别为：y=0.1576e(上标 0.0146x)和y=0.1826e(上标 0.0112x)。

The results indicate that the adsorption isotherms are well-fitted by the Freundlich models, and the pH values and initial concentrations are the main influence factors.

结果表明，吸附沉淀剂对Cu(上标 2+)、Pb(上标 2+)的吸附平衡符合Freundlich方程，pH值和初始质量浓度对吸附沉淀量的影响最显著。

Objective To investigate in vitro MRI detection of axonal transport for tracing optic nerve pathway and cerebral projection as well as effect of MnCl2 concentration in the vitreous body for transsynaptic crossing.

目的 探讨Mn(上标 2+)增强磁共振扫描对活体大鼠视觉传导通路及皮层投射的显示以及眼球玻璃体内Mn(上标 2+)的浓度对跨节转运的影响。

After dissolution, the Cr in samples was oxidized to Cr with KMnO4.Fe(superscript 3+) and Cu(superscript 2+) were masked with NH4HF2 and thiourea, respectively. In acid solution at pH 3.0-4.0, the I2 generated from the reaction of Cr and KI could form high-sensitivity blue complex with starch. The absorbance was measured spectrophotometrically at 590 nm.

样品溶解后，用KMnO4将Cr氧化为Cr，以NH4HF2掩蔽Fe(上标 3+)、硫脲掩蔽Cu(上标 2+)后，在pH3.0~4.0的酸性溶液中，Cr与KI作用后生成的I2遇到淀粉后形成灵敏度很高的蓝色络合物，此络合物最大吸收波长为590nm。

By using factor analysis method, the effects of Pb(superscript 2+), Cd(superscript 2+) on physiology of seedling trees of Yunhe Snow Pear were studied.

方法］采用因子分析法，研究Pb(上标 2+)、Cd(上标 2+)及其复合污染对云和雪梨苗生理机能的影响。

The research aimed to study the effects of calcium ions Pb(superscript 2+ and plumbum ions Cd(superscript 2+ on the physiological and biochemical indices of seedling trees of Yunhe Snow Pear to provide references for produce of Yunhe Snow Pear.

［目的］研究Pb(上标 2+)、Cd(上标 2+)及其复合处理对云和雪梨树苗生理生化指标的影响，为种苗生产提供参考。

During incubations, significant uptake fluxes of NO(superscript - subscript 3) and SiO(superscript 2- subscript 3) were commonly shown at the sediment-water interface, and largely controlled by their concentrations in the overlying water. The molecule diffusive fluxes, calculated from the concentration gradients between overlying water and surface pore water, seemed not so important in the exchange fluxes.

沉积物－水界面交换过程在春季表现为对NO(上标-下标 3)和SiO(上标 2-下标 3)的吸收，吸收的量在很大程度上取决于上覆水中这两种营养盐的浓度；由上覆水和表层间隙水浓度梯度所决定的分子扩散通量对实际交换通量的控制有限。

Methods The ablactation rats and their F 1 generation were fed with water dissolved Y(superscript 3+) at different level (0, 53.4, 5 340 mg/L).

刚断乳大鼠饮用含稀土Y(上标 3+)为0，53.4，5340 mg/L的饮用水，子代饮水同亲代。

Methods The ablactation rats and their F1 generation were fed with water dissolved Y(superscript 3+) at different level (0,53.4,5340mg/L).

刚断乳大鼠分别饮用含稀土Y(上标 3+)为0，53.4，5340mg/L的饮用水，子代饮水同亲代。

Di-2-ethylhexyl adipate was synthesized with complex solid super acid SO(superscript 2- subscript 4)/ZrO2-TiO2 as catalyst. Effects of catalyst dosage, molar ratio of adipic acid to 2-ethyl hexanol, reaction temperature on reaction were studied.

以复合固体超强酸SO(上标 2-下标 4)/ZrO2-TiO2为催化剂合成了己二酸二（2-乙基）己酯，考察了催化剂用量、酸醇投料比和反应温度对反应的影响。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。