查询词典 ca

The 8th century, the Sharada script evolved out of the Gupta script, and was mostly displaced in its turn by Devanagari from ca.

从ca。八世纪开始，Sharada手稿从Gupta发展起来，主要地从ca。

Compared of the efficiency of treating heavy metals in FGD wastewater with NaOH, Ca_2 and Mg_2. It indicated that NaOH was much efficient for precipitated waste water; Ca_2 was much efficient for unprecipitated waste water, the removal efficiency reached 98.4%. With the increasing of the main ion of Ca~2+, Cl~- in FGD wastewater, the efficiency decreased. It decreased 60% for the removing of Mn and 10% for Zn, Cd and Ni. The rectification coefficient token the Ksp of practical wastewater because it quite different with theoretic Ksp at different pH; the theoretic and practice addition were proportioned and it commonly reached 1:300.The precipitation efficiency of Na2S at different pH and the effect of Ca2+ was determined.

比较了NaOH、Ca_2和Mg_2处理脱硫废水时重金属的去除效果，分析了Ca~(2+)、SO_4~(2-)和Cl~-等主要离子的影响，结果表明：NaOH和Ca_2能有效处理脱硫废水中的重金属；对澄清废水而言，NaOH效果较好，对于未澄清废水而言，Ca_2效果更好，但去除废水中重金属的效率都能达到98.4%；随着Ca~(2+)、Cl~-等主要离子浓度的增大，中和作用去除重金属的效率降低，Mn最大降低60%，Zn，Cd，Ni降低10%左右；实际重金属浓度和用理论Ksp计算所得值差别很大，通过校正系数能有效计算实际重金属浓度；实现相同pH时氢氧化物的理论和实际投加量成一定比例，最大可达1：500。

This chapter describes how a certain PKI/CA system is implemented, including the requirement analysis, the safety scheme design, the using of the certificates the client safety, the server safety and the security at the time of unsealing the bidding files.

建设工程网上招投标系统的安全是基于PKI／CA框架来实施的。PKI/CA是一个比较全面的实施安全的体系结构，用来实现基于公钥密码体制的证书产生、管理存储、发行和作废等功能，其中证书体制和以得到了广泛的应用。

Nutrient composition of Vallisneria natans was analyzed. Results show that V. natans contained 218.4 gkg^(-1) of protein, 51.4 gkg^(-1) of crude fat, 37.6 gkg^(-1) of polysaccharides, 265.7 gkg^(-1) of ash; and 147.6 gkg^(-1) of total amino acids, 55.0 gkg^(-1) of essential amino acid; and a number of mineral elements, such as 60.5 gkg^(-1) of K, 10.9 gkg^(-1) of Ca, 16.3 gkg^(-1) of Fe, 12.7 gkg^(-1) of Na.

沉水植物苦草的营养成分分析结果表明，其蛋白质含量为218.4gkg^(-1)，脂肪含量为51.4 gkg^(-1)，多糖含量为37.6 gkg^(-1)，灰分含量为265.7 gkg^(-1)；氨基酸总量为147.6 gkg^(-1)，必需氨基酸为55.0 gkg^(-1)；含有K、Ca、Cu、Fe、Zn、Mn、Na、Al、Ba等多种矿质元素，其中K、Ca、Fe、Na含量分别高达60.5、10.9、16.3、12.7gkg^(-1)。

Many research results showed that Na~+, K~+ and Ca~(2+) channels are involved in the spontaneous and repetitive firing induced by sustained depolarizing currents.

因此，本实验以新鲜分离的正常DRG神经元为研究对象，着重观察Ca~(2+)、膜电位振荡和去极化速率对其重复放电的影响，并分析Ca~(2+)依赖性K~(2+)电流的特点，以及在后电位中的作用。

The desulphurization efficiency increases with the rise of Ca/S ratio. When the Ca/S ratio is 1. 4 and △T is 12 ℃, the desulphurization efficiency of the Baoshan slaked lime could be more than 90%.

采用宝钢消石灰作脱硫剂，当Ca/S比为1.4、△T为12℃时，脱硫效率可达90％以上。

It is able to smelt S, S-Ca, S-RE and S-Ca-RE system free-cutting steel in acid furnace.

本文研究了Ca、RE对硫系易切削钢中易切削相的变性作用。

Methods: Randomly subgrouping the rat into normal group, model group, paishi granule up, and Yiqi Huoxue Paishi decoction group, except the normal and model group, rats in other groups were all intragastrically administrated with 1.25% Ethylene Alcohol plus 1% ammonia chloride, then to observe the Ca(superscript 2+), Mg(superscript 2+), P(superscript 3+), uric acid of the blood serum and urine, the ethanedioic acid in renal tissue.

随机将大鼠分为正常组、模型组、排石冲剂对照组和益气活血排石饮组，除正常对照组外，以1.25%乙二醇合1%氯化铵灌胃制作大鼠草酸钙肾结石模型，观察各组大鼠血清Ca(上标 2+)、Mg(上标 2+)、P(上标 3+)、尿酸及肾组织草酸以及尿Ca(上标 2+)、Mg(上标 2+)、P(上标 3+)、与尿尿酸的含量。

Based on cloud seeding data on April 5,2002 in Henan province,cloud seeding effects were evaluated by six methods,i.e.double contrast method of regional rainfall tendency control,regression analysis method of regional tendency correlation,multiple regression analysis method of regional tendency covariant,floating control historical regression method,cluster-analysis-based floating control historical regression method using rainfall as a covariant and CA-FCM using rainfall and atmospheric perceivable water as covariants.

根据2002年4月5日河南省人工催化增雨作业数据，分别采用作业区域趋势对比双比分析评估方案、区域趋势相关回归评估方案、区域趋势协变量多元回归评估方案、FCM评估方案、以降水量为协变量的CA-FCM评估方案和以降水量与整层大气可降水量为协变量的CA-FCM评估方案进行效果评估。

There was a significant negative correlation between Ca contents in peel and creasing fruit rate.

果皮N、P含量与柑桔皱皮果的形成没有相关性，K在皱皮果中的含量比正常果高，而在阳面果皮比阴面果皮高；Mg在皱皮果和阴面果皮及其细胞壁的含量都比在正常果和阳面果皮稍低，但Mg的含量与皱皮果率的相关性不显著；Ca在正常果和阳面果皮及其细胞壁的含量都明显高於皱皮果和阴面果皮，皱皮果率与Ca的含量呈显著的负相关。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。