经过开环、光气化、缩合等一系列反应制备了苯磺隆。
Tribenuron-methyl is synthesized via ring-opening reaction, phosgenation and condensation.
解释:从地球仰望星空,笼罩在天鹅座周围的那些外观精美、如细丝般令人震撼的发光气体,形成了面纱星云。
Explanation: Delicate in appearance, these filaments of shocked, glowing gas, draped in planet Earth's sky toward the constellation of Cygnus, make up the Veil Nebula.
与传统的摩天大楼不同,这个淡水加工厂不是为城市而建设,而是为有着充足阳光气候和有利的生长条件的西班牙阿尔梅里亚省而建设。
Unlike a traditional skyscraper, the freshwater factory is proposed not for the city but for the Almeria province of Spain for its sunny weather and favorable growing conditions.
星云所以取得这个名称,是因为它们的光学图像显示了尘埃把一些星云的发光气体模糊化地形成了使人联想到拱形特征。
The nebula gets its name because optical images show dust obscuring some of the nebula's glowing gas in a shape reminiscent of the arcade character.
美国密歇根的摄影师Terry Hancock在自家后院用望远镜观测到了由无数恒星,发光气体和暗色尘埃形成的巨大漩涡。
But the photographer from Michigan, USA, used the observatory in his backyard to reveal an enormous swirling spiral of billions of stars, glowing gas and dark dust.
它可以代替剧毒的光气和硫酸二甲酯作为环境友好的有机合成中间体和起始物质,应用与羰基化和甲基化反应中。
It can be use as an environment-friendly intermediate and starting material for organic synthesis substituting the poisonous phosgene and dimethyl sulfate in carbonylation and methylation reaction.
方法对19例急性光气中毒患者的临床症状、体征、动脉血气变化和肺影像学改变等临床资料进行综合分析。
Methods To aggregate analyse the clinical symptoms, signs, the changes of arterial blood gas and lung imaging and so on of 19 acute phosgene poisoning patients.
结论:急性光气中毒主要引起急性肺损伤,通过以糖皮质激素为主的综合治疗,可以在短时间内痊愈。
Conclusion: acute phosgene poisoning cause acute lung injury principally, it can be healed in short time by combination treatment mainly included glucocorticosteroid.
开发了光气合成生产装置流程模拟软件及相庆的数学模型,并成功地用于现场生产装置的模拟计算。
A process simulation software of phosgene synthetic unit and corresponding mathematic models were developed, which were successfully used in field production unit simulation.
对湖南省有优势的几种有机化工原料,如甲苯、光气、柠檬酸等的精细化工开发,提出了具体的建议。
It is suggested to develop industry of the fine chemicals concerned with some superior raw materials in Hunan province, such as toluene, phosgene and citric acid.
甲醇氧化羰化羰化法是合成dmc的一种新工艺路线,该工艺与传统的光气法工艺相比,具有工艺流程简单、无三废污染及生产成本低等优点。
Compare to the traditional phosgene process, synthesis of DMC by oxidative carbonylation of methanol is more favorable because of its simple, environmental benign and cost-effective characters.
用扫描电镜和透射电镜观察低剂量双光气吸入中毒所致家兔呼吸系统损伤的超微结构改变。
Scanning electron microscope and transmissional electron microscope were used to observe the ultrastructural changes of respiratory tract in rabbits inhaling low concentration of diphosgene.
三光气作为剧毒的光气和双光气在合成中的替代物,不但毒性低,使用安全方便,而且反应条件温和、选择性好、收率高。
The triphosgene, being as the substitute for phosgene and diphosgene in synthesis, is not only low-toxic but also safe and convenient to use with mild conditions, good selectivity and high yields.
事实上,别人对你发出的负想法,将以相同的力道被你的光气场弹开,依最小阻力路径行进,而回到发出想法的人。
In fact, negative thoughts sent to you by others will rebound from your aura with the same force with which they were sent out, and seeking the lines of least resistance, will return to the sender.
整体动物全呼吸道中毒的血液动力学改变与上呼吸道单独受双光气刺激所引起的血液动力学改变循相似规律。
While the intact rabbits were poisoned, they had the similar course of hemodynamic changes as that of those animals with upper respiratory tract irritated alone.
本发明涉及一种在气相中,任选在至少一种惰性介质存在下,使相应的胺与光气反应而生产异氰酸酯的方法。
The invention relates to a method for producing isocyanates by reacting the corresponding amines with phosgene, optionally in the presence of at least one inert medium, in the gas phase.
该方法用双(三 氯甲基)碳酸酯替代光气,从源头上大大降低了安全和环保隐患;
The method uses the bi-(trichloromethyl methyl) carbonate to replace phosgene so as to greatly reduce the safety and environmental protection risks from the source;
以三光气(BTC)和四溴双酚a (TBBPA)为原料,经界面缩聚合成了高分子量四溴双酚a聚碳酸酯。
Tetrabromobisphenol-A polycarbonate (TBBPA-PC) was synthesized by interfacial polymerization with triphosgene (BTC) and tetrabromobisphenol a (TBBPA) as raw materials.
结论:光气中毒后肺mpo活性显著增加,提示肺部有明显的PMN聚集,耗竭pmn后可以缓解光气中毒后肺损伤的程度。
CONCLUSION: The MPO vigor, following phosgene exposure, increases greatly in lungs, indicating an obvious PMN aggregation. Depletion of PMN can relieve acute lung injury induced by phosgene.
用三光气代替光气合成化合物能有效消除光气的危险性,在生产中具有较广泛的应用前景。
The risk of reaction using phosgene could be avoided effectively by substitution of triphosgene for phosgene, and application of triphosgene in production with broad prospect was believed by author.
液体中的含气量是单泡声致发光相空间的重要参数,对声致发光气泡的运动及发光有重要影响。
Gas concentration in liquid is an important parameter in single bubble sonoluminescence (SBSL), which significantly affects the movement and light emission of the SBSL bubble.
引进空气钻井、氮气钻井、空气锤冲击钻井在普光气田上部陆相地层试验和应用,并成功拓展到须家河组地层。
Introducing into air drilling, nitrogen drilling and air percussion drilling were applied in Puguang upper continental facies stratum; moreover, drilled successfully into Xujiahe group stratum.
以双氰胺钠和糖精为起始原料,经过开环、光气化、缩合等一系列反应制备了苯磺隆,合成反应的总收率可达57。
Using sodium dicyandiamide and saccharin as raw materials, tribenuron-methyl is synthesized via ring-opening reaction, phosgenation and condensation with total yield of 57.
他亲和力十足,谈吐笑容皆散发出地中海域独有的阳光气息,而他自己则将此归功于马尔代夫天堂般的美景和最快乐的风情。
He leaves a rather amiable impression and naturally sheds the charm of "Mediterranean Sunshine" which, he himself regards owing to the paradisiacal scenery and wonderful atmosphere in Maldives.
最终形成了适合普光气田储层特征的射孔液体系配方,并对其整体性能及回收利用能力进行评价。
Ultimately the perforating fluid system adapt to Puguang gas reservoir characteristics is formed, and its overall performance and recycling capacity are evaluated.
本发明用固体光气代替了一级剧毒性气体――光气,便于准确计量,优化了操作条件,对环境污染小;
The present invention uses solid phosgene, rather than phosgene to result in accurate metering, optimized operation condition and less environmental pollution.
天文学家们称,这是他们所观察到的最遥远的类星体,是一个被发光气体环绕的巨型黑洞,也是早期宇宙中最为明亮的天体。
Astronomers say it is the most distant quasar, a massive black hole surrounded by luminous gas, that they have ever seen as well as the brightest object to be sighted in the early universe.
天文学家们称,这是他们所观察到的最遥远的类星体,是一个被发光气体环绕的巨型黑洞,也是早期宇宙中最为明亮的天体。
Astronomers say it is the most distant quasar, a massive black hole surrounded by luminous gas, that they have ever seen as well as the brightest object to be sighted in the early universe.
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