1·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。
2·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。
3·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。
4·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。
5·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。