查询词典 ethylene

The progress of study and application of catalyst on polycondensate reaction of polyester were reviewed, manufacture and application of diantimony trioxide, antimony acetate ,ethylene glycol antimony were introduced and discussed in detail, and preliminary research direction of ethylene glycol antimony was pointed out.

介绍了聚酯缩聚反应所用催化剂的研究与应用进展，详细评述了三氧化二锑、醋酸锑、乙二醇锑的研制与应用情况，初步提出了今后乙二醇锑的研究方

Alloys for Ethylene Production Furnacesindustry, due to the decoking necessary to maintain ethylene furnace tubes.

由于要保护乙烯炉管所必须进行的脱硫，在化工行业乙烯的生产是能源密集型其中之一。

Ordinarily the reaction rate of amino acids is faster than that of glycols, but the carbon chain of ethylene glycol is very short, the reaction rate of L-aspartic acid was longer than that of ethylene glycol.

另外，丁二醇比乙二醇碳链长，位阻大，反应慢；通常氨基酸的反应速度要比醇快，但由于乙二醇的碳链很短，导致其比天冬氨酸的反应速度还快。

Pregnant women exposed to lead, benzene, toluene, xylene, ethylene chloroprene, mercury and mercury compounds, arsenic, cyanide, nitrogen oxides, carbon monoxide, chlorine, carbon disulfide, styrene, ethylene oxide, aniline and formaldehyde and other chemicals prone to pregnancy-induced hypertension syndrome, appears lower extremity edema, blood pressure, urine protein appeared, and there will be a serious headache, vertigo, chest tightness and other symptoms, or even convulsions.

妇女怀孕后接触铅、苯、甲苯、二甲苯、氯丁乙烯、汞和汞的化合物、砷、氰化物、氮氧化物、一氧化碳、氯气、二硫化碳、苯乙烯、环氧乙烷、苯胺和甲醛等化学物质容易患妊娠高血压综合症，出现下肢浮肿、血压增高、尿中出现蛋白，严重时会出现头痛、眼花、胸闷等症状，甚至发生抽搐。

The effects of temperature, benzene to ethylene molar ratio and the weight hourly space velocity of ethylene on the catalyst performance were studied, respectively.

通过考察反应温度、苯烯摩尔比和乙烯质量空速对催化剂性能的影响，获得了如下适宜工艺条件：反应温度190～220℃，苯烯摩尔比6～8，乙烯质量空速≤2h-1。

Methods Sixty male SD rats were randomly divided into six groups (n=10). Rats in water-drinking group were treated with deionized water, nifedipine group with deionized water and nifedipine 10 mg.kg-1.d-1, calculiinduced group with deionized water containing 1% ethylene glycol, and three calculi-induced+nifedipineintervening groups with deionized water containing 1% ethylene glycol plus nifedipine 3, 6 and 10 mg.kg-1.d-1, respectively.

60只雄性SD大鼠随机分成饮水组（只饮去离子水、硝苯地平组（饮去离子水，并灌喂硝苯地平10 mg.kg-1.d-1）、诱石组（饮1%乙二醇去离子水）、诱石＋硝苯地平干预组（共3组，饮1%乙二醇去离子水，并分别灌喂硝苯地平 3、6、10 mg.kg-1.d-1），每组10只，连续处理4周。

Advances in silver catalyst for ethylene oxide from ethylene by direct oxidation at home and abroad were reviewed,based on the status,progress,and trend of its technology.

主要从技术现状、技术进展和发展趋势等几方面，对国内外乙烯直接氧化制环氧乙烷的银催化剂的进展情况进行了综述。

Methanol and ethylene glycol poisoning; Methanol and ethylene glycol are both metabolised by alcohol dehydrogenase, the same enzyme that metabolises ethanol, to formic acid and oxalic acid, respectively.

甲醇和乙烯乙二醇中毒；甲醇和乙烯乙二醇二者经过乙醇脱氢酶——代谢乙醇的同一代谢分别形成蚁酸和草酸。

Methanol and ethylene glycol poison ing; Methanol and ethylene glycol are both metabolised by alcohol dehydrogenase, the same enzyme that metabolises ethanol, to formic acid and oxalic acid, respectively.

甲醇和乙烯乙二醇中毒；甲醇和乙烯乙二醇二者经过乙醇脱氢酶——代谢乙醇的同一代谢分别形成蚁酸和草酸。

The results showed that the absorption capability of ethylene glycol was improved when water was added into pure ethylene glycol.

对不同浓度、不同温度下乙二醇-水体系吸收羰基硫气体的能力实验进行了考察。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。