辛烷值

This was attributed to its low acidity, which suppressed the aromatization and cracking reactions. Moreover, the olefin content in gasoline was significantly increased.

而且产物组成中烯烃的含量有明显上升，因此汽油的辛烷值仍能保持在较高的水平，没有因芳烃含量减少而降低。

RAG - 1 catalyst is a necessaries of exclusive use in ARGG technology, and applied to produce liquefied gas and benzine with high octane value in a large scale.

RAG—1催化剂是与ARGG工艺配套的专用剂，适用于目前最大量的生产液化气和高辛烷值汽油。

Also, ethanol is an octane enhancer, which can reduce emissions of cancer causing benzene and butadiene, by more than fifty percent.

除此之外，乙醇还可以增加燃料的辛烷值，从而可以减少50%以上的由于燃烧不完全而产生的有害物质的排放。

The use of the butene is to rely mainly on mixing the butene and producing the petrol component of high hard alkane value, account for 60% of volume of consumption of butene, 11% mixed butene is used as industry or civil fuel.

丁烯的利用是以混合丁烯生产高辛烷值汽油组分为主，约占丁烯消费量的60%，另有11%的混合丁烯用作工业或民用燃料。

The following table is a rough guide to octane values per engine compression ratio for a carburettor engine without engine management.

对于有着先进管理系统的现代的电喷汽车，这些辛烷值可以下调5到7个点。

Some properties of petroleum products in refinery such as gasoline octane number and diesel cetane number are necessary to be online monitored.

在炼油过程中，通常需要对产品的关键品质比如汽油辛烷值或柴油十六烷值等进行在线监测。

There is a direct correlation between the compression ratio of an engine and its fuel octane requirements.

发动机的压缩比和燃料的辛烷值有直接的关系。

Gasolinecontained 67.8% aromatic hydrocarbons, 21.47% olefins and a small quantityof alkanes and cycloparaffin hydrocarbons. The enlarging study on blending feed of vegetable oil and petroleumfraction was performed in a Two-Stage Riser.

通过优化各种因素，植物油的转化率达到81.18%，丙烯产率达到19.52%；汽油的产率为30.58%，其中含有67.87%的芳烃、21.47%的烯烃，以及少量的烷烃和环烷烃，其研究法辛烷值为90.3，抗爆指数为83.9。

Ii is a process with low investment and great profit to use the C5 etherealization product as the blending component of gasoline with high octane number. The C5 fraction is cut from steam cracking and it's diolefins are saturated by selective hydrogenation.

裂解C5馏分选择性加氢饱和二烯烃后，醚化产物作为高辛烷值汽油调合组分是一条投资少、见效快的工艺路线。

An alternative increasingly being used is ethanol, which has an octane rating of 108 or 110; gasoline with 10 percent ethanol is marketed as gasohol.

还有一种逐渐普及的替代方案是乙醇，乙醇的辛烷值为108或110，添加10%乙醇的汽油在市场上称为「酒精汽油」。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。