The contents of elements K, Na, ca, Mg in carbon fibre were determined by atomic absorption spectrophotometry.
碳纤维中的钾、钠、钙、镁元素的含量可用原子吸收分光光度法来测定。
Micro plot trial was carried out to study the effect of K application on dry matter accumulation and the content and the absorption of K, ca and Mg of oil rape.
采用池栽土培试验研究了钾对不同生育期油菜干物质积累量和钾、钙、镁含量及吸收量的影响。
Ca absorption and tipburn of lettuce were studied under different application of n, k, ca, sprinkler irrigation and border irrigation in open field.
在露地栽培条件下，研究了不同氮、钾、钙水平处理以及喷灌、畦灌对生菜钙吸收和干烧心的影响。
The contents of metal elements K, Na, Ca and Mg in serum from 60 severe diabetics were detected, and compared with the control group.
对60例重度中老年糖尿病患者进行了血清中钾、钠、钙、镁的含量测定，并与正常对照组进行了比较。
Authors measured serum Ca, p, Mg, K, Na, Cl, nonprotein nitrogen and mucin of 8 serum in urolithiasis sheep and health sheep separately.
作者取患尿石病和健康绵羊血清各8份，分别测定其钙、磷、镁、钾、钠、氯、非蛋白氮和粘蛋白等成分。
The dregs contain large quantities of N, P, K, Ca, Mg and trace elements, thus can provide abundant nutrition for crops.
发酵液废弃菌渣中含有大量的氮、磷、钾、钙、镁、硫及多种微量元素，可谓作物提供丰富营养。
Eocene lavas belong to high K Calc alkaline (HK CA) series and those of Miocene to shoshonite (SHO) series.
渐新世火山岩为高钾钙碱性系列，中新世岩石属于钾玄岩系。
And the order of element concentration was first n, next K, then Ca, P, Mg, Fe, Mn, Zn and Cu in order.
在元素含量的顺序上是氮最高，钾次之，随后依次为钙、磷、镁、铁、锰、锌、铜。
The content of n, P, K, Ca and Mg in root decreased as root diameter increased.
根中氮、磷、钾、钙、镁含量随根径的增大而减少。
Ca was positive correlation with n, p, Cu and Zn, but negative correlation with other 4 nutritional elements, especially with K.
钙与氮、磷、铜和锌呈正相关关系，与其他4种元素呈显著负相关关系，尤其是钾。
The sample was treated with releasing a-gent lanthanum chloride for the determination of Ca and Mg and treated with cesium chloride solution to suppress ionization for the determination of K and na.
测定钙、镁时，采用氯化镧作为释放剂，测定钾、钠时，采用氯化铯作电离抑制剂。
Methods Rhubarb cultivated in Xinning of Qinghai growing for two years was picked, and the contents of K, Na, Ca, Mg, P in them were analyzed.
方法定期采集青海西宁二年生种植大黄，跟踪分析测试其钾、钠、钙、镁、磷等矿物质元素。
Statistical analysis showed significant differences from November to March in the amounts of N, P, K, Ca and Mg in the leaves.
经统计学分析表明：秋梢叶片各常量元素含量均呈显著的消长关系；
The photometric probe is sensitive to the color change of acid chrome K and naphthol green B mixed indicator when Ca 2+ and Mg 2+ are titrated with EDTA.
应用于EDTA滴定钙镁时，该探头能灵敏地响应酸性铬蓝K萘酚绿B混合指示剂的颜色变化，从而实现了自动光度滴定。
The mean content values of K and Ca determined by the lixiviation method were 0.
以豆科牧草苜蓿为样品，采用盐酸浸提法和消煮法测定牧草中钾、钙含量。
Effect of temperature on the release of K, Ca, and Mg in soil was relatively small.
温度对土壤钾钙镁释放的影响相对较小。
Under low phosphorus condition, the ratio of root to shoot in all genotypes increased; uptaking and distribution of p, k, Ca, Mg, Fe, Zn between roots and shoots also changed.
低磷胁迫增大了植株的根冠比，改变了植株对营养元素的吸收及其在地上部和根系的分配。
The catalysts composed of V/K/Ca, V/K/Ce may have both amorphous and crystalline phases as demonstrated by XRD and DSC-TG analyses.
经XRD和TG-DSC分析，以钒钾钙、钒钾铈合成的催化剂为非晶态和晶态物质的混合物。
The catalysts composed of V/K/Ca, V/K/Ce may have both amorphous and crystalline phases as demonstrated by XRD and DSC-TG analyses.
经XRD和TG-DSC分析，以钒钾钙、钒钾铈合成的催化剂为非晶态和晶态物质的混合物。
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