查询词典 urea-formaldehyde

With the expansion of business scale, ocean abundance of sulfur-based compound fertilizer company has built a plant, sulfuric acid plant, urea-based fertilizer plants, ammonia plants and other projects.

随着业务规模，丰富的海洋中硫的扩张复合肥公司建立了工厂，硫酸厂，尿素的化肥厂，合成氨厂等项目。

This article introduces the scheme reasoning、equipment selecting and project implementing of the Timing System Alteration for The fertilizer plant Urea device Ammonia Pump.

本文介绍了化肥厂尿素装置氨泵调速系统改造的方案论证、设备选型和工程实施。

The results show that the BST is a nice nitrogenous fertilizer resources and to some extents,equal and superior to traditional nitrogenous fertilizer urea and sulphuric acid ammonia.

结果表明，BST是很好的氮肥资源，等同于或某种程度上优于尿素和硫酸铵。对土壤的理化性质、氨态氮、硝态氮含量以及对作物吸收Ca，Mg，K等养分和生长发育的影响与常规氮肥相似。

After two rice-wheat rotations, 11%–13% of applied labeled N remained in 0-60 cm soil (mostly in the 0-20 cm soil); leaching of labeled urea applied in rice season was little (only 0.6%–1.1% of the applied N accumulated in 20-60 cm soil), and the leaching of fertilizer N occurred in wheat season and the beginning flooding period of the next rice season; 47%–54% of applied fertilizer N was lost and ammonia emission and nitrification-denitrification were the main pathways.

水稻季施用的肥料氮向耕层以下移动很少，20—60 cm土层中累积肥料氮仅占施氮量的0.6%～1.1%，主要发生在小麦季及水稻泡田时期，肥料氮损失占施氮量的47～54%，氨挥发和硝化反硝化气态损失是主要途径。

A fertilizer leak-preventing device is developed to stop fertilizer leakageon the stirring-knife-reel adjusting fertilizer distributor,especially severe when operatedwith granulated fertilizers such as urea during the non-working state of the distributor.

针对使用搅刀－拨轮式排肥器的悬挂施肥播种机在施尿素等颗粒状肥料时，非工作状态所发生的肥料严重漏失问题，研究设计了阻止漏肥装置。

Effects of drip irrigation and furrow irrigation on the utilization of urea-N in greenhouse tomato were studied by using~(15)N isotope technique.

用15N示踪技术研究了沟灌和滴灌对温室番茄栽培尿素氮的利用及其在土壤中残留的影响。

Award-winning products company has: Rake feeder by the National Science and Technology Progress Award, stacker country was the outcome of major technologies and equipment for third prize, JZM900 automatic palletizing machines and 1.6MPa pressure response in glass-lined tank has a national patent certificate and was identified as state-level new products, for an annual output of 52 tons urea plant feeder rake supporting Ministry of Chemical Industry as quality products, liquefied petroleum gas tank, glass-lined reactor was the title of quality products of Jiangsu Province. 1.6MPa pressure response in glass-lined tanks and shell and tube heat exchanger Products owned national patent certificate.

公司得奖产品有：耙料机获国家科技进步一等奖，码垛机获国家重大技术装备成果三等奖，JZM900自动码垛机和1.6MPa搪玻璃中压反应罐拥有国家专利证书且被认定为国家级新产品，为年产52吨尿素装置配套的耙料机评为化工部优质产品，液化石油气贮罐、搪玻璃反应罐获江苏省优质产品称号。1.6MPa搪玻璃中压反应罐和管壳式换热器产品拥有国家专利证书。

We mixed different fuel like Urea , Citric-acid and Glycin with Zircony-Nitrate and Yttrium-Nitrate respectively .

实验结果显示以尿素做为燃料，与硝酸氧锆、硝酸钇安定剂在 350 ℃的温度下可合成奈米氧化锆粉末。

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The results suggested that chitinhad a good solubility in the new solvent when its at -30℃and below, but the solubilityof chitin no longer increasesd notable as the temperature reduced; The joined of urea, incertain degree, strengthened the solvency of alkali solvent to chitin. When theconcentration of sodium hydroxide is 8%～12%, Chitin had a good solubility, and theapparent viscosity of chitin solution could up to 4000 mpa·s～5000mpa·s at roomtemperature; In addition,the solubility of chitin in new solvent was high when therefrigerated time was three days and above, but the refrigerated time could not too long,otherwise, the deacetylize degree of chitin got more bigger. The properties of chitin solution were tested by revolving viscosimeter, FT-IR,X-RD and so on.

结果表明，在-30℃及以下甲壳素能很好的溶解于新溶剂中，但甲壳素的溶解度不再随温度的下降而有所增大，而是基本保持不变；尿素的加入，在一定程度上强化了强碱溶剂对甲壳素的溶解，当新溶剂中NaOH浓度为8％～12％时，甲壳素在试验温度下可以获得较好的溶解度，所得溶液在室温下的表观黏度达4000 mpa·s～5000mp·s；冷冻时间为3 d及以上时，有利于甲壳素的溶解，超过3 d，甲壳素的溶解度变化不大，另外，冷冻条件下，甲壳素在强碱溶剂中仍会发生脱乙酰化反应，冷冻时间不宜太长。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。