查询词典 Ion

One gram of Cu-saturated selective ion exchange resin was horizontally embedded in saturated soil pastes and recovered after various time ( 1、2、3、4 days) intervals, and the amounts of Cr adsorbed on the ion exchange resin were measured in order to determine the time needed for equilibrium.

将装有铜饱和树脂(DOWEX M4195)之树脂袋埋入已制备好之水饱和土壤中，分别於1、2、3及4天后取出树脂，振荡后测定树脂抽出土壤中有效性六价铬之含量，以确定抽出水田土壤中有效性六价铬所需平衡之时间。

A simple, fast and selective spectrophotometric method for the determination of trace nitrate ion in uranium dioxide was developed, based on the fade of indigo carmine with nitrate ion in sulfuric acid medium.

基于硝酸根离子对靛蓝二磺酸钠的褪色反应，建立了一个简单、快速、选择性好的二氧化铀产品中硝酸根离子的测定方法。

This indicates the addition of ion monomer actually has no impact on the type of liquid crystal; however, to the same length of polymer chains, their liquid crystal properties gradually disappear as the increasing of addition of ion monomers, T and T of each liquid crystalline ionomers are increased with adding ionomers, but T is reduced.

对于同一链段长度的聚合物，当引入离子单体的含量增加时，液晶性逐渐消失；各液晶离聚物的介晶转变温度T和熔点T随着离子加入量的增加略有增加，但T降低。

With enhancement being unconspicuous when chloride ion concentration was lower than 300 mg/L, the increase in iron reactivity was strong when chloride ion concentration was higher than 500 mg/L.

当Cl质量浓度较低时(00mg/L)，对Cr去除增强不很明显，当Cl质量浓度为500mg/L时，对Cr去除有较强的增强作用。

In recent years,high current ion linacs have become increasingly attractive for applications such as heavy ion fusion and nuclear waste treatment,and these applications have raised strict requirements of low beam losses.

强流离子直线加速器因其可作为次临界装置的驱动器，近来在放射性洁净核能系统等方面的应用中出现了一些新的动向，引起人们极大的关注。

Emphasis was focused on the developments of optical molecular chemosensors for nitric oxide, mercury ion and copper ion.

本文在前人研究的基础上根据一些特异性化学反应成功地设计了一系列光学分子传感器。

In this paper,the discharge capacity,stability voltage and the ratio of constant current charge capacity and battery discharge capacity of lithium ion battery were studied. For the lithium manganese lithium-ion batteries,the discharge capacity,mid-value voltage and stability voltage all increased with increasing charge cutoff voltage. As long as charge cutoff voltage was no less than 4.15 V,the battery discharge capacity loss would not exceed 6%. When charge cutoff voltage was 4.15V,the constant current charge capacity accounted for more than 85% of total charge capacity,a little change from 4.20 V.

主要研究了不同截止电压对锰酸锂离子电池的放电容量性能、工作电压和恒流/恒压充电容量等电池性能的影响，结果表明：对于锰酸锂材料锂离子电池，放电容量、中值电压和稳定电压都随着充电截止电压的升高而提高，电池的充电截止电压只要不低于4.15 V，电池放电容量损失就不会超过6%；当充电截止电压为4.15 V时，电池的恒流充电容量占总充电容量的85%以上，与4.20 V相比变化不大。

According to the crystal-field levels probed in the spectra, the crystal field splitting of 2G7/2 manifold of Yb3+ ion in YOS is 709 cm-1, which is large enough for the quasi-three-level laser operation of Yb3+ ion.

由光谱数据计算得Yb3+离子的2F7/2能级在Y2O2S中的分裂值为709cm-1，适合于Yb3+离子的准三能级的激光运转。

Then we introduce theory of ion-exchange process and how to design multimode Y branch optical splitters. Lastly we do some experiment of how to fabricate the device with Li~+-Na~+ ion-exchange technology.

本文首先比较了多模功分器的种类和制作方法，介绍了离子交换的原理，然后对多模Y分支结构的多模光功分器进行设计，并对器件制作所用的Li~+-Na~+离子交换工艺进行实验研究。

For Et4NBF4/AN, the least ionic transfer and diffusion resistance led to an excellent capacitance retention property. For Bu4NBF4, due to the larger solvated ion diameter and higher ion transfer resistance, the capacitive performances were inferior to those of Et4NBF4 in terms of specific capacitance and power density.

实验结果表明：对于高微孔比率的电极材料，由于Et4N+的溶剂化离子半径小于Et4N+的溶剂化离子半径，因此，Et4NBF4体系下的电荷存储密度和有效表面利用率更高，电容性能优于Bu4NBF4。

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。