查询词典 basic bithmuth nitrate

The results showed that the activities of urease, nitrate reductase, nitrite reductases and the yield of above ground plants were the highest with the fertilization pattern of taking 50 percent nitrogen from organic fertilizer and the other 50 percent nitrogen from urea.

结果表明：采用50%的N由有机肥提供，50%的N由尿素提供的施肥模式时，黑麦草根际土壤脲酶、硝酸还原酶、亚硝酸还原酶活性最强，黑麦草地上部产量最高。

The observation and monitoring were carried out for one year. Improvements resulted from the project include suspended particles, transparency, concentration of chlorophyll A, total organic carbon, total nitrogen. Factors that did not show obvious improvement include electrical conduction, concentration of nitrate nitrogen, ammonia nitrogen, nitrous nitrogen, phosphate salts. Finally, factors that were influenced by environment include water level, temperature, pH, total phosphorus, chloride salts.

历经一年的试验，因设备投入而改善之因子为溶氧、浊度、悬浮固体、透明度、叶绿素a、总有机碳、总氮等7项，无明显变化之项目为导电度、硝酸盐氮、氨氮、亚硝酸盐氮、磷酸盐等5项，受环境影响因子为水位、水温、pH、总磷、氯盐等5项。

After 14D and 28D, Observe the color of the leaves,Count the number of leaves and respectively measure the seedling's height、root long、wet weight、dry weight、relatively water content、chlorophyll content、soluble sugar content、proteid content、nitrate reductase activity and Peroxide enzyme activity to discuss the effect of each element to the tomato seedling.

为材料，进行缺氮、缺磷、缺钾、缺铁的溶液培养，分别在培养14d和28d后观察其叶色，计算叶数并测定了各缺素植株的株高、根长、鲜重、干重、相对含水量、叶绿素含量、可溶性糖含量、蛋白质含量、硝酸还原酶活性和过氧化物酶活性。

Through modifying proportions of potassium nitrate, sulfur, phenolophthalein and potassium hydrate, formula of charcoal-free black powder is optimized by replacing charcoal with reactant of phenolphthalein and potassium hydrate.

以酚酞和氢氧化钾的反应物替代木炭，通过调整硝酸钾、硫磺、酚酞及氢氧化钾的混合比例对无木炭黑火药配方进行优化设计，对比研究了普通黑火药与无木炭黑火药在机械感度、静电火花感度、热分解过程及输出特性等方面的差异。

The invention relates to a preparation method of epsilon-MnO2 layered structure nano-sphere comprising the following steps: adding potassium persulphate, manganese sulphate, ferric nitrate and concentrated sulfuric acid into hydrothermal reactor, charging deionized water and fully stirring, natural cooling the mixture to room temperature after hydrothermal reaction for 1-24 hours at 110-200 DEG C, washing and drying the product to obtain hexagonal crystal epsilon-MnO2 layered structure nano-sphere with a stable structure and uniform grain size.

一种ε-MnO 2 层状结构纳米球的制备方法，将过硫酸钾，硫酸锰，硝酸铁，浓硫酸加入水热反应釜中，加入去离子水充分搅拌后，在110-200℃水热反应1～24h后自然冷却至室温。得到的产物经洗涤干燥即得到结构稳定，粒径均匀的六方晶型的ε-MnO 2 层状结构纳米球。

Nitrate reductase activity in leaf blades was 27 and 9 times higher than that in petioles and roots, respectively.

结果表明，适当增铵使叶片、叶柄和根系硝酸盐含量分别降低了22％、15％和22％，而硝态氮吸收量则降低了7.5％。

Northern blotting analysis indicated that 5 genes, nitrate transporter gene, nitrite reductase gene, ammonium transporter gene, ATP-binding cassette transporter gene, and purine permease gene, were significantly up-regulated under nitrogen starvation.

Northern blotting验证其中5个基因，包括硝酸盐转运蛋白基因、铁氧化还原蛋白亚硝酸还原酶基因、铵盐转运蛋白基因、结合ATP盒的转运蛋白基因和嘌呤透过酶基因，在缺氮诱导条件下转录水平有明显上调。

Ceric ammonuim nitrate and sodium bromate series oxidation system was used selectively to oxidize oximes into the corresponding aldehydes and ketones in water.

在水溶液中，用硝酸铈铵溴酸钠串联氧化体系对肟进行选择性氧化生成相应的醛

Metallic-compound oxidizers, such as potassium nitrate or potassium perchlorate, generate condensed-phase products of particularly high molecular weight, which is rather undesirable.

金属复合氧化剂，如硝酸钾或高氯酸钾，产生凝聚相的产品，尤其是高相对分子质量，这是相当不可取的。

Oxidizers based on ammonium nitrate arechiefly characterized by its low signature.

汉语名词或副词转译成动词例5 硝酸铵基氧化剂的主要特点是它的信号特征低。

We were cousins—his grandfather was King of Scots,and his great-grandfather was Henry VII of England.

我们是堂姐弟——他的祖父曾是苏格兰国王，他的曾祖父是英格兰的亨利二世。

I do want to help you, but I am in a quandary now!

我是想帮你，但是我现在左右为难啊！