查询词典 Ion

The effects of metal ions on ethanol tolerance of self-flocculating yeast was studied by using a defined medium in shake flask culture. The observed improvement of zinc ion supplementation on ethanol tolerance promoted the further examination of zinc ion effect on continuous ethanol fermentation. Zinc sulfate was supplemented into the fermentation medium at the concentrations of 0.01, 0.05 and 0.1gL^(-1), respectively.

研究了6种金属离子在合成培养基中对摇瓶培养的自絮凝酵母乙醇耐性的影响，发现锌离子对高浓度乙醇冲击下的酵母细胞活性有保护作用，并进一步研究了乙醇连续发酵过程中锌的添加对自絮凝酵母乙醇耐性的影响。

On account of high working voltage,large energy density,long cycle life,low self discharge rate and green environmental conservation,lithium ion battery has attracted much attention and has been widely applied in mini-type electric instruments presently.Meanwhile,the lithium ion batteries are developing toward the fields of space technology,national defense industry,electromotive vehicle and UPS actively.

锂离子电池因工作电压高、能量密度大、循环寿命长、自放电率低、&绿色&环保等众多优点而倍受人们关注，目前已广泛地应用于小型用电器中，并正积极地向国防工业、空间技术、电动汽车、静置式备用电源等领域发展。

The effect of three common hydro-chemical factors,such as univalent cation concentration(Na+ ion concentration),bivalent cation concentration(Ca2+ ion concentration) and pH value on clay particles releasing in sand column was studied through batch test.

通过批量试验，对一价阳离子浓度，二价阳离子等，浓度(Ca2+浓度)和pH值三个最常见水化学因素对砂柱中粘土颗粒释放的影响进行了研究。

Dandong City, Liaoning Province Orient Resin Factory of China's production of ion exchange resin backbone enterprises, the earlier production of domestic manufacturers of ion exchange resin, one plant so far in 1991 has fifteen years of production history.

辽宁省丹东市东方树脂厂是我国生产离子交换树脂的骨干企业，国内较早生产离子交换树脂厂家之一，一九九一年建厂至今有十五年的生产历史。

The equipment can both perform ion implantation and combine ion implantation with sputtering deposition and coating to form many kinds of synthetic surface modification techniques.

该装置既能执行离子注入，又能把离子注入与溅射沉积，镀膜结合在一起，形成多种综合性表面改性工艺。

Through balancing ion in dietary to gain the proprieties ion distance, the producing ability of milk cow can be improved greatly, and milk fever can be prevented efficiently .

通过平衡日粮离子，获得适宜的离子间隙，可以极大的改善奶牛的生产性能，有效防止乳热症，提高饲料摄入，增加奶产量，降低跛行、难产、乳房炎的发病率。

The mechanism is expatiated about the generation and dissipation of charged particle in burned gas plasma, and a mathematical model of the spark plug ion current in SI engine is founded, based on the chemistry kinetics, thermodynamics and plasma physics. It founds a theoretic foundation for extensive application of the spark plug ion current signal.

基于这一基本思想，对燃气等离子体中带电粒子的产生和消失机理进行了研究和阐述，进而综合运用化学动力学、热力学和等离子体物理学的有关知识建立了点燃式发动机火花塞离子电流的数学模型，为离子电流的广泛应用奠定了理论基础。

The DS4G ion engine utilises a different concept first proposed in 2001 by David Fearn, a pioneer of ion propulsion in the UK, which solves this limitation by performing a two-stage process to decouple the extraction and acceleration of ions using four grids.

DS4G离子引擎应用了与传统离子引擎不同的概念，这个概念是由英国离子推进学的先驱戴维-福恩在2001年提出的。他使用了4个栅格来解决传统离子引擎存在的不足，即分两阶段来减弱离子的吸引和加速度。

Xenon ion and energetic electron emitted from xenon ion engine influence the surface charging/discharging effect by taking part in the process of GEO satellite surface charging/discharging caused by space plasma,second electrons and photoelectrons.

用于GEO卫星上的氙离子发动机工作时喷射出具有一定能量和密度的氙离子及电子，参与了通常由空间等离子体、表面材料二次电子、光生电子等对GEO卫星的表面充/放电过程，从而对卫星表面充/放电效应产生影响。

The structure of the thin film capacitor 1 of this invention is: form sequentially at least the bottom electrode layer 102, the high dielectrics constant oxide film 103 and the upper electrode layer 105 on the semiconductor substrate 101; said upper electrode layer 105 which is a film layer 104 formed by the electrical conductive material which is processable by reactive ion etching, or a multilayered film composed of two kinds of film layers 107 and 108, which are each formed of a conductive material which is processable by at least two kinds of reactive ion etching.

要约 薄膜电容器1是至少在半导体基片101上按顺序形成下部电极层102、高介电常数氧化物膜层103、上部电极层105而构成的薄膜电容器，该上部电极层105由一种仅由可用反应性离子刻蚀加工的导电性材料形成的膜层104，或至少两种由可用反应性离子刻蚀加工的导电性材料分别形成层状的多层膜层107和108构成；经历350℃的热试验之后，对该薄膜电容器1施加OV到2V的驱动电压的薄膜电容器漏电电流密度为1×10 －8 A/cm 2 以下。

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。