查询词典 hydrogen cyanide

Process comprising contacting initiator with alkylene oxide in the presence of hydrogen fluoride and a double metal cyanide complex catalyst.

一种方法，其包括说明书摘要在氟化氢和双金属氰化物复合催化剂存在下使引发剂与亚烷基氧化物接触。

Environmentalists attribute such high mortality rate to the ceaseless production of organic chemicals like toxic dioxins, hydrogen cyanide, lead and sulfur mustard.

环境学家把如此高的死亡率归咎于不断生产有机化学品，如有毒的二恶英、氰化氢、铅和硫芥子气。

The spacecraft's sensitive spectrometer was able to register the chemical signatures not only of water vapor but also of hydrogen cyanide, carbon monoxide, and carbon dioxide--all precursors of the more complex molecules that scientists think eventually gave rise to life on Earth.

斯必泽太空望远镜上敏感的光谱仪不但能够记录水蒸气的化学特征，还能够记录氰化氢、一氧化碳和二氧化碳的化学特征，这些都是更为复杂分子的初级粒子，科学家们认为是这些初级粒子最终导致了地球生命的产生。

Astronomers used Spitzer to look for a prebiotic chemical, called hydrogen cyanide, in the planet-forming material swirling around different types of stars.

天文学家使用斯皮策卫星观测了在不同恒星周围的原始行星盘中，生命起源物质——氢氰酸HCN的含量。

Stuart Abramson, MD, a pediatric immunologist at Texas Children''s Hospital, also in Houston, says that cigarette smoke contains about 4,000 chemicals and a sizable number of carcinogens and contaminants, including benzene, butane and hydrogen cyanide.

斯图尔特阿布拉姆森，医学博士，儿科免疫学家在得克萨斯州儿童医院，也是在休斯顿说，香烟烟雾中含有约4000种化学物质和相当多的致癌物质和污染物，包括苯，丁烷和氰化氢。

Hydrogen cyanide is thermodynamically favored under partial oxidation conditions (i.e., steam-to-carbon ratio of 0.00) at high temperatures and low oxygen-tocarbon ratios.

氢氰酸的生成在高温和低的氧－碳比的相对氧化性（如：蒸汽－碳比为0.00）的条件下动力学有利。

Among the substances in third-hand smoke are hydrogen cyanide, used in chemical weapons; butane, which is used in lighter fluid; toluene, found in paint thinners; arsenic; lead; carbon monoxide; and even polonium-210, the highly radioactive carcinogen that was used to murder former Russian spy Alexander V.

三手烟中的物资包括用于制造化学武器的氢氰化物，轻质石油的丁烷，涂料稀释剂中的甲苯，砷，铅，一氧化碳，甚至还有谋杀了前苏联间谍亚历山大利维尼柯的极具放射性致癌物资钋210，三手烟中11种组成物质都是高致癌物资。

Hydrogen cyanide ; calcium oxide ; removal at high temperature

氰化氢； CaO ；高温脱除

The researchers detected hydrogen cyanide molecules in disks circling yellow stars like our sun -- but found none around cooler and smaller stars, such as the reddish-colored "M-dwarfs" and "brown dwarfs" common throughout the universe.

研究人员在类似太阳的黄色恒星周围的星云盘中检测到了HCN，但在更冷更小的恒星——比如遍布宇宙的M型红矮星和棕矮星——周围却没有找到HCN踪迹。

The researchers detected hydrogen cyanide molecules in disks circlingyellow stars like our sun -- but found none around cooler and smallerstars, such as the reddish-colored "M-dwarfs" and "brown dwarfs" commonthroughout the universe.

研究人员在类似太阳的黄色恒星周围的星云盘中检测到了HCN，但在更冷更小的恒星——比如遍布宇宙的M型红矮星和棕矮星——周围却没有找到HCN踪迹。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。