查询词典 oil tar

But because of its high moisture content, high oxygen content and some impurity, biomass tar needs to be purified or modified before using it as bunker oil.

生物质焦油150℃以下下层馏分的主要含量为羧酸类和酚类物质等多种有机化合物，具有较高的综合利用潜力。

Black charcoal one kind of filler in being rubber, the abrasion resistance being able to increase rubber waits , it is take tar oil as raw material in lower splitting decomposition of high temperature but able mainly.

1：炭黑是橡胶里的一种填充剂，可以增加橡胶的耐磨性等，它主要是以煤焦油为原料在高温下裂解而成的

Two methods of distillation crystallization method and gas chromatography to determine the naphthalene content in coal tar oil were introduced.

介绍煤焦油中萘含量测定的两种方法：蒸馏结晶法和气相色谱法，对两种方法的优缺点及分析结果进行了对比。

Then a complex fraction of coal tar anthracene oil was analysed under the same condition, which showed the application potentialities of this multidimensional chroma...

采用正相HPLC－GC联用结合反冲技术，分离了重质石油中的饱和烃、芳烃和极性化合物。

Thete can also be found substances such as crude oil,coal,creosote,and road/rooging tar

它们还可以在一些物质中，如原油，煤，杂芬油，和焦油等

N Thete can also be found substances such as crude oil,coal,creosote,and road/rooging tar

它们还可以在一些物质中，如原油，煤，杂芬油，和焦油等

Thete can also be found substan CE s such as crude oil,coal,creosote,and road/rooging tar

它们还可以在一些物质中，如原油，煤，杂芬油，和焦油等

The gooey tar-sands of Canada contain almost as much oil as Saudi Arabia.

加拿大粘稠的沥青砂中所含的石油可与沙特阿拉伯相比。

Found in coal-tar light oil and in petroleum, it is obtained chiefly from the processing of petroleum fractions .

甲苯发现于石油和煤焦油中，主要从石油处理过程中获得。

Firstly,naphthalene was extracted from coal-tar oil with ethanol.

从煤焦油中提取萘的主要方法是蒸馏。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。