查询词典 anion

The weak base anion exchange resin with covalent bond side chains which contain donator atom N offering unshared electron pairs, is able to form a coordinative covalent bond to heavy metal in which unsaturated vacant orbits exist in its electron shells.

在天然淡水水体的环境下，重金属被树脂吸附源于树脂胺基官能团上的N原子有孤对电子，水中所含重金属的价电子层有空轨道。

Trial 1. Effects of different dietary cation - anion balance on the digestion and degradation dynamics of fibreTwelve 2 years old Inner Mongolian fine wool wethers(Body weight, 29 ± 3.36kg) with permanent rumen and duodenum cannula , divided into 4 groups of 3 were used to study the effects of 4 levels DCAB on the digestion and rumen degradation of dietary fibre and on digestion of the dietary DM, ADF and NDF and passage at the different sites of the digestive tract of sheep.

试验一：不同日粮阴阳离子水平对纤维物质消化动态学及降解动力学的研究选用 2周岁（体重为 29 ±3.36kg）安装有永久性瘤胃瘘管和十二指肠近端瘘管的内蒙古半细毛羯羊12只，随机分成4组，每组3个重复，采用食糜标记技术和尼龙袋法研究了4种不同DCAB水平对玉米秸秆中干物质、中性洗涤纤维、酸性统涤纤维、纤维素及半纤维素在绵羊瘤胃中有效降解率以及对日粮中DM、NDF及ADF在消化道不同部位流通和消化规律及对瘤胃微生物蛋白质合成的影响。

The MSDs assemble to form a low conductance (6-10pS) anion-selective pore with deep intracellular and shallow extracellular vestibules separated by a selectivity filter.

MSDs构成一个低电导(6~12pS)的阴离子选择性孔道，其形状如同不对称的沙漏，胞外小胞内大，狭窄部分为离子筛。

The ESR data of 3f suggest that Cu〓 is in a distorted tetrahedral field, that is to say, Cu〓 is coordinated to three tertiaty nitrogen atoms and one chloride anion.

为了探测模型化合物中Cu〓的配位情况和几何构型，采用相同的方法合成和表征了杂双核化合物3f，ESR信号结合质谱信息表明杂双核化合物3f中，Cu〓是四配位的，即它与一个C1〓和三个叔铵氮原子配位而处于变形的四面体场中。

The ESR parameters of 4g strongly indicate that Cu〓 in complex 4g has a trigonal-bipyramidal environment, that is to say, Cu〓 is coordinated to four tertiaty nitrogen atoms and one chloride anion.

为了探测模型化合物中Cu〓的配位情况和几何构型，采用相同的方法合成和表征了杂双核化合物4g，ESR研究结合质谱信息表明在杂双核化合物4g中，Cu〓是五配位的，即它与一个Cl〓和四个叔铵氮原子配位而处于三角双锥场中。

The remaining anion s include negatively charged proteins, phosphates, and sulphates.

剩余的阴离子包括带负电荷的蛋白、磷酸和硫酸。

In addition, UE/HPLC/ICP-MS equipped with anion exchange column to speciate Cr and Cr in the μg/L level. H2 and He were used as collision gas in the ICP-MS detection to reduce the interference of multiatomic ions for Cr-52 ion monitoring.

又为继续提高灵敏度，本研究也使用超音波震荡/阴离子交换管柱的高效能液相层析/感应耦合电浆质谱法将三价铬及六价铬分离，并且将侦测范围降低至μg/L。

The naphthenic acids in 200~430℃ distillate of Liaohe crude oil were separated by column chromatogram and anion exchange resin.

采用柱色谱和阴离子交换树脂法分离出辽河200~430℃馏分油中的环烷酸。

The energy change and mechanism of 〓,〓,and 〓 sorbed on goethite were also studied with microcalorimetryfirstly,so as to confirm the difference of mechanism of anion and heavy metalcation sorbed on soil colloids and clay minerals.

与此同时，首次应用微量热法对针铁矿表面吸附〓磷酸根离子反应中的热量变化进行了探讨，以揭示重金属阳离子和阴离子在土壤胶体与粘粒矿物表面吸附反应的机制。

Quantitive coordinate solvent-DME was added during the preparation reaction or crystallization, sodium ion in complex 1, 2 and 4 will be extracted and become free one, thus new solvated anion-cation pair complexes [2Ln2][Na22] Ln = Nd (5, Sm (6), Yb (7) were formed.

在反应或者结晶的过程中加入一定量的乙二醇二甲醚，配合物1，2和4中与双芳氧鞠位的钠离子被DME分子萃取出来，生成阴阳离子对配合物[_2Ln_2][Na_2_2]Ln=Nd(5，Sm(6)，Yb(7)。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。