They've developed these sensors that can detect tiny amounts of ethylene.
他们已经开发了这些传感器，可以检测到微量的乙烯。
Auxin also causes the plant to develop a vascular system, to form lateral roots, and to produce ethylene.
生长素还能使植物形成维管系统，形成侧根，并产生乙烯。
Ethylene is the natural plant hormone in fruit that makes them turn ripe, apparently.
很明显，乙烯是水果中天然的植物激素，使水果成熟。
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。
Reaction of the isocyanic acid (HNCO) and isothiocyanic acid (HNCS) with ethylene radical is studied.
研究了异氰酸及异硫氰酸与乙烯自由基之间发生的反应。
Apples, for example, release ethylene gas, a plant hormone. It can cause other foods to ripen too quickly.
例如，苹果释放乙烯气体——一种植物激素，会引起其它食品过早成熟而腐烂。
Fruits that release a lot of ethylene also include apricots, melons and tomatoes.
大量释放乙烯的水果还包括杏子、瓜果和番茄。
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。
Apples give off a natural gas called ethylene that can wilt, spot, or rot other food.
苹果散发出的天然气体被称为乙烯，这可以使其他的食物枯萎，出现黑斑或腐烂。
Samples from Delphic spring water and rock from the intersecting faults revealed traces of several chemicals including ethylene.
特尔斐泉水的样本以及断层裂缝岩石的样本中提炼出几种化学物质，其中包括乙烯。
Plants all produce ethylene, a ripening gas that promotes maturation.
植物会产生乙烯，这是一种促进植物老化的催熟气体。
Parsnips, which have a strong flavor to start with, can become bitter when stored near apples and other fruits, which produce ethylene gas, according to research from Penn State University.
据宾州州立大学的调查显示，本身具有苦味的欧防风与苹果等会释放乙烯气体的水果一起存放后，会变得更苦。
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。
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。
Vodka stunts ethylene production, thereby helping flowers stay wilt-free longer.
伏特加可以抑制乙烯的产生，以此让鲜花的枯萎时间延后。
Ethylene can also be turned into alkanes, a class of hydrocarbons that are a component of gasoline.
乙烯还可以转变成烷烃——是石油中含有的一种碳氢化合物。
PET is made from two feedstocks, one of them an organic acid, the other ethylene glycol, which is relatively inexpensive.
PET由两种原料制成，一种是有机酸，另一种是相对便宜的乙二醇。
Commercial test proves that topped oil is an excellent ethylene pyrolysis feedstock.
工业试验证明，拔头油是一种优良的乙烯裂解原料。
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。
A polymerized ethylene resin used especially for containers kitchenware and tubing or in the form of films and sheets for packaging.
聚乙烯一种聚合的乙烯树脂，尤用于容器、厨房器具和各类管中，或以卷和片的形式供包装使用。
Centrifugal compressor in the petrochemical industry application is very wide, especially in the application of ethylene industry.
离心式压缩机在石化工业的应用很广，尤其是在乙烯工业的应用。
Polymers of ethylene, in primary forms.
初级形状的乙烯聚合物。
Whenever a plant responds to applied, I. E., unbalanced, applications of auxin, ethylene is produced.
当一植物对不平衡地施用生长素起反应时，总是产生乙烯。
Whenever a plant responds to applied, I. E., unbalanced, applications of auxin, ethylene is produced.
当一植物对不平衡地施用生长素起反应时，总是产生乙烯。
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