The preservative used is usually ethylene glycol or propylene glycol, as alcohol will evaporate quickly and the traps will dry out.
常用防腐剂是乙二醇或丙二醇，因为随着酒精快速挥发，捕集器也随之恢复干燥。
The trouble is that the ethane route to making ethylene produces virtually no propylene.
问题在于这种用乙烷制作乙烯的生产流程几乎不会伴有丙烯产生。
Macquarie has seen a sharp increase in demand from big companies for bespoke hedging products for polypropylene and propylene.
麦格里银行已经观察到大公司对定制的针对聚丙烯和丙烯的对冲产品的需求有显著的增长。
Along with many of McDonald's sauces, both the cilantro lime glaze and the orange glaze contain propylene glycol alginate.
除此之外，很多麦当劳的酱料也添加了这两种含有海藻酸丙二醇的物质。
The olefins, such as ethylene and propylene, are formed from petroleum gas or from cracking of larger hydrocarbons. Ethylene is used to make polyethylene e.g.
烯烃主要是来自石油气或大分子的碳氢化合物裂解，如乙烯，丙烯。
Shampoos contain around 15 chemicals including Sodium Lauryl Sulphate, Tetrasodium and Propylene Glycol, known to cause eye damage.
—洗发水里含有大概15种化学物质，包括十二烷基硫酸钠、乙二氨四醋酸四钠（译者按：化妆品中的隔离剂，可用作抗菌剂和防腐剂）和丙二醇。 而这三者都是已知的会损害眼睛的物质。
Technologies do exist to manufacture propylene as an end in itself, rather than as a by-product.
科技确实可以将丙烯自身当作最终产物而不是作为一种副产品来制造。
That too means less propylene, since it is also a by-product of petrol production.
既然丙烯也是石油工业产品的副产物，这也意味着其产量缩水。
Polypropylene is derived from propylene, which is in turn a by-product of a specific way of producing ethylene, a particularly useful hydrocarbon.
聚丙烯来自丙烯，而丙烯又是生产乙烯（一种特殊用途的碳氢化合物）所使用特殊工艺的副产物。
A decade ago most ethylene in North America was made using naphtha, an oil derivative: it is this process that has propylene as its by-product.
十年前，北美的大多数乙烯是石油脑(一种石油衍生物)所制：其生产过程所产生的副产物正是丙烯。
When your well-meaning mom sends you an email telling you that SLS causes cancer or Propylene Glycol causes brain damage, it can make even the most caviler chemist nervous.
当你好心的妈妈给你发送电子邮件，告诉你SLS导致癌症，或者丙二醇导致大脑损伤，即使最吹毛求疵的化学家也会紧张。
Propylene glycol is also used "As the killing and preserving agent in pitfall traps, usually used to capture ground beetles" [10].
丙二醇也被认为是隐藏在随身物品中的杀手的代理，习惯于用来捕捉地面上的甲虫[10]。
Many of the raw materials used in the petrochemical industry are unsaturated hydrocarbons, such as ethylene, propylene, butene and butadiene.
在石油化学工业中所用的许多原料是不饱和烃类，如乙烯、丙烯、丁烯和丁二烯。
In contact with a hot surface, naphtha petroleum fractions crack to produce ethylene and propylene.
石脑油馏份与一个热表面接角，就裂解而得到乙烯和丙烯。
Synthesis technology and property of hydroxypropyl starch by using potato starch as raw material, propylene oxide as etherization reagent and sodium hydroxide as catalyst, were studied in this paper.
本文以马铃薯淀粉为原料，环氧丙烷为醚化剂，氢氧化钠为催化剂对低取代度羟丙基淀粉的制备工艺进行了研究。
These enamel matrix proteins when suspended in a thickening agent (propylene glycol alginate - PGA) are retained on root surfaces for up to two weeks.
当材料悬浮于增稠剂(海藻酸丙二醇酯)时，这些釉质基质蛋白可以在牙根表面滞留长达两周。
Compares the main propylene carbonyl synthesis processes and the development of relative catalyst at home and abroad, and analyzes several methods of recovering waste Rhodium catalysts.
比较国内外丙烯羰基合成主流技术以及羰基合成催化剂的研究进展情况。
Label Statement: Contains flavor, propylene glycol and ethyl alcohol.
标签声明：本品含有香精，丙二醇和乙醇。
Label Statement: Contains flavor, propylene glycol, ethyl alcohol and Caramel Color.
标签声明：本品含有香精，丙二醇，乙醇和焦糖色素。
Polymers of propylene or of other olefins, in primary forms.
初级形状的丙烯或其他烯烃聚合物。
And ethylene propylene diene monomer has been in the automotive sealing industry, widely used.
而三元乙丙橡胶已在汽车密封条行业中得到广泛的应用。
If you have dry skin, use oil-based oil moisturizers that have propylene glycol to keep your skin moist.
如果你是干性皮肤，使用油性的润肤霜，它含有丙烯醣质能使你的皮肤保持滋润。
A new correlation which predicts propylene yield is presented.
介绍一个新的预测丙烯产率的关联式。
Improved tensile strength and elongation of ethylene propylene diene monomer compounds used for wire and cable.
提高电线电缆用三元乙丙橡胶材料的拉伸强度和伸长率。
Chlorohydrin production of propylene oxide with the impurities except for acetaldehyde, propionaldehyde and hydrocarbon, epoxides, halogenated alkanes, acetone, alcohols, such as.
用氯醇法生产的环氧丙烷中所合杂质除有乙醛、丙醛外，还有烃类、环氧化物、卤代烷、丙酮、醇类等。
It was validated that ethylene is the origination olefin of methanol to propylene by experiments.
通过实验验证了乙烯是甲醇转化制丙烯过程中的起始烯烃产物。
These results can be applied to process design and other engineering calculations relative to propylene carbonate.
这些结果可应用于有碳酸丙烯酯的过程设计和其它工程计算。
A new process of Hydration of propylene oxide to glycols was introduced.
采用反应精馏新工艺由环氧丙烷水合制丙二醇。
A new process of Hydration of propylene oxide to glycols was introduced.
采用反应精馏新工艺由环氧丙烷水合制丙二醇。
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