查询词典 nitrate

Many growers spend considerable time choosing among sidedressers such as calcium nitrate, sodium nitrate, 30 percent UAN liquid, and 24S UAN liquid.

许多种植者花费了相当多的时间选择侧施肥料，比如硝酸钙、硝酸钠、30％的UAN液体肥料和24S的UAN液体肥料。

In this paper, the hydrophobic cellulose nitrate microporous composite membranes have been obtained by modification of hydrophilic cellulose nitrate microporous membranes by the use of plasma polymerization of octafluorocyclobutane.

本文以八氟环丁烷为单体，采用等离子体聚合法将亲水性硝酸纤维素微孔膜改性，制得疏水硝酸纤维素微孔复合膜。

Because the traditional resolver cellulose nitrate lustre-coating agent it does not bear the aging, the resistance to cold to be bad, shortcomings and so on hygienic performance difference receive the impact, but emulsion cellulose nitrate lustre-coating agent, although the comparison environmental protection and the hygienic performance are high, but because became the membrane glossiness to be bad and the emulsion long-term laying aside does not stabilize has limited its application.

传统的溶剂型硝化纤维光亮剂因其不耐老化、耐寒性差、卫生性能差等缺点而收到冲击，而乳液型硝化纤维光亮剂虽然比较环保且卫生性能较高，但因成膜光泽性较差和乳液长期放置不稳定而限制了其应用。

Therefore, when configuration resolver leather lustre-coating agent uses the alkyd resin and the melamine xylenol-formaldehyde resin and the cellulose nitrate mix method, the retention cellulose nitrate Cheng Mo merit, improves it not to bear the aging, the cold resistant bad shortcoming, undergoes the repeated test, compounds the successful resolver lustre-coating agent to have the very good radiance and softness, bears the stretch, bears scours, becomes the membrane to be smooth.

因此，在配制溶剂型皮革光亮剂时采用醇酸树脂和三聚氰胺甲醛树脂与硝化纤维混合的方法，保留硝化纤维成膜的优点，改进其不耐老化，耐寒性较差的缺点，经过反复试验，配制成功的溶剂型光亮剂有很好的光亮度及柔软度，耐拉伸，耐擦洗，成膜光滑。

Results The activity of copper and cerium oxide catalysts were better than that of copper nitrate or cerium nitrate.

结果Cu／Ce复合氧化物催化剂对吡虫啉农药废水具有较高的催化活性。

ResultsThe activity of copper and cerium oxide catalysts were better than that of copper nitrate or cerium nitrate.

然而，催化湿式氧化能实现有机污染物的高效降解，同时可以大大降低反应的温度和压力。

The round trip flow time is cut short from two hours to ten minutes and the method adopts silver nitrate-bismuth nitrate united screening method to eliminate the disturb of chorine ion instead of strenuous noxious mercury sulfuric.

本方法适当提高硫酸浓度，强化了重铬酸钾的氧化效率，使回流时间由 2h缩短到 10min ；并且用硝酸银和硝酸铋联合掩蔽法能消除氯离子的干扰，代替剧毒的硫酸汞。

The nitrate reductase is an molybdenum enzyme, molybdenum cofactor is necessary for the activity of nitrate reductase.

所有的硝酸还原酶都是钼酶，需要有钼辅助因子的参与。

0Mg/L 6-benzylaminopurine was the optimal concentration of shoots quantity inducing which frequency of inducing shoots and number of shoots per explant were 100% and 11.1 respectively. 0.5mg/L 6-benzylaminopurine was the optimal concentration of shoots length inducing which average length of shoots was 12.0mm. Explant size had significantly effects on direct shoots quantity and length induction. When complete cotyledon used as explant, frequency of inducing shoots, number of shoots per explant and average length of shoots could approach to 100%, 6.7 and 17.1mm respectively. 2.0mg/L silver nitrate could significantly increase shoot quantity induction, both frequency of inducing shoots and number of shoots per explant could be as high as 97.2% and 4.2 respectively. But silver nitrate also could restrain shoots elongation.

结果表明：不同黄瓜品种直接不定芽数量诱导存在显著差异，但长度诱导无显著差异；6-苄氨基嘌呤对直接不定芽数量和长度的诱导作用显著，其中4.0mg/L为数量诱导适宜浓度，其出芽率和每外植体出芽数达到最高，分别为100.0%和11.1，0.5mg/L为长度诱导适宜浓度，其平均芽长12.0mm；外植体的大小对直接不定芽数量和长度均具显著影响，随着子叶的增大诱导直接不定芽的数量和长度增加，其中单片完整子叶为最适宜大小，其出芽率、每外植体出芽数和平均芽长分别达到100%、6.7和17.1mm；硝酸银也对直接不定芽数量诱导影响显著，其中2.0mg/L为适宜浓度，出芽率和每外植体出芽数分别达到97.2%和4.2，但对芽长有抑制作用。

The absorption of root system was the main sources of nitrogen in the plant.The effects of matrix ventilation on the abaorption,transportion and metabolism of nitrogen in the root system of cucmber were discussed deeply.The results showed that contents of ammonium,nitrate,free amino acids and soluble protein in cucumber roots were higher in G1 treatment.Contents of ammonium,nitrate and free amino acids in cucumber roots were the trend of the dropping after the first rising in F1 treatment,but contents of soluble protein was lower11.03%than that of the control.

根系吸收是植物体内氮素的主要来源，本研究深入探讨了基质通气状况对黄瓜根系氮素吸收、运输和氮代谢的影响，结果表明G1通气处理根系的铵盐、硝酸盐、游离氨基酸和可溶性蛋白含量均较高；非通气处理(F1处理)根系内铵盐、硝酸盐和游离氨基酸含量呈先升高后降低的趋势，而可溶性蛋白含量始终较低，比对照降低11.03%。G1处理根系硝酸还原酶、亚硝酸还原酶、谷草转氨酶、谷丙转氨酶、谷氨酰胺合成酶活性均较高；而F1处理的酶活性在处理末期显著降低，其中谷氨酰胺合成酶活性比对照降低33.33%。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。