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.
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.
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.
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.
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;
近年来，我国在四川东北部相继发现了一系列含硫气田，如罗家寨气田和普光气田等。
In recent years, some gas reservoirs with different H2S-content have been found in northeast of Sichuan Province in China, such as Luojiazhai and Puguang gas field.
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.
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.
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.
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.
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.
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.
天然气乙烷碳同位素与各层系烃源岩干酪根碳同位素值对比结果揭示普光气田天然气主要来自二叠系烃源层。
The carbon isotope correlation between ethane in the natural gases and source rock kerogens shows that the gases in the reservoirs were mainly derived from Permian strata.
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.
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.
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.
用二（三氯甲基）碳酸酯（BTC）代替光气，“一锅法”合成了8种取代脲类除草剂，产物结构经元素分析、IR确证。
Eight substituted ureas herbicides were synthesized with bis(trichloromethyl) carbonate(BTC). The production structures were identified by elemental analysis and IR.
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.
讨论了碳酸二甲酯的合成工艺，主要介绍氧化羰基合成工艺，并对碳酸二甲酯取代硫酸二甲酯和光气市场的可能性进行了分析。
Synthesis process of dimethyl carbonate is reviewed. Oxidative carbonylation of methanol to DMC and the possibilities of replacement of DMS and COCl_2 by DMC are discussed.
甲醇液相氧化羰基化法是人们最早研究的非光气法d MC合成工艺，也是众多DMC合成方法中成本最低、最经济的工业路线。
The oxidative carbonylation of methanol route is one of the earliest phosgene-free synthetic routes of DMC, and it also contains the virtue of low cost which made it more economical.
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.
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.
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