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。

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。

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。

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。

Polymers of ethylene, in primary forms.

初级形状的乙烯聚合物。

A univalent chemical radical derived from ethylene.

从乙烯衍生而来的一价化学基。

Apples, for example, release ethylene gas, a plant hormone.

例如苹果，释放出乙烯气体，这是一种植物激素。

Such reactions to ethylene are consistent with ancient reports.

这种对乙烯的反应和古代的一些报道是一致的。

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。

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。

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。

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。

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。

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。

The direct effect of ethylene on lipase activity and its mechanism have been studied.

研究了乙烯对脂肪酶活力的直接作用及其机理。

There are two systems which regulate ethylene production in respiration climacteric fruit.

跃变型果实中乙烯生成有两个调节系统。

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。

This series products are compounds polymerized from ethylene oxide as initiating agent and EO.

本系列产品是以乙二醇为起始剂与环氧乙烷聚合制得的化合物。

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。

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。

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。

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。

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。