问题 问答题 简答题

叙述高压煤浆泵P-1301的工作原理及内部结构?

答案

参考答案:高压煤浆泵由下列部分组成:

①驱动系统,主要有电机和减速装置;

②动力端,主要有变速齿轮和十字头偏心机构;

③液力端,分为驱动液端和水煤浆端,主要有驱动液的活塞缸套和水煤浆端的隔膜室,活门腔,隔膜缓冲器等部分;

④压力开关系统。

工作原理:

由电机通过变速齿轮及十字头偏心机构驱动活塞缸内的活塞做往复运动。从而使驱动液端和水煤浆端的隔膜室的容积发生周期性变化。在水煤浆端的入口和出口装有两个单向阀,当煤浆端的容积变大时,煤浆被吸入,当煤浆端的隔膜室容积变小时,煤浆被排出。

完形填空
The cultures of the East and the West really distinguish each other a lot. This is because the culture systems are two ______ systems on the whole.
The ______ of the eastern cultures is mainly from two countries: China and India. Both of the two cultures are gestated(孕育) by rivers. In China, the mother river is the Yellow River _____ the Indian one is the Hindu River. These two cultures were developed for several thousand years and formed their own _____. Then in Dang Dynasty of China, the Chinese culture _____ went overseas to Japan, _____ into the Japanese society and shaped the Japanese culture nowadays. Though a bit different from the Chinese one, it belongs to the same ______.
When the two mother rivers gave birth to the eastern culture, another famous culture was ______ on the Mesopotamian Plain ---- the Mesopotamian Civilization. This civilization later on developed into the cultures of the Ancient Greece and Ancient Rome. And these two are well-known ______ the base of the European culture. Like the Chinese culture, the European one also ______ waters. When the colonists of England _____ in America, their culture went with them over the Atlantic Ocean. So the American culture doesn't _______ from the European one a lot.
At the same time, the difference of the language systems _______ the cultural differences. In the East, most languages belong to the pictographic language (see the picture below) while the Western languages are mostly based on the Latin system, for example, the one I’m using to write this paper.
Other factors like human race difference counts as well. But what’s more, ______ the far distance and the steep areas between the East and West, the two cultures seldom communicate until recent centuries. So they grew up totally in their own ways with almost no ______ from the other.
小题1:
A.connectedB.separateC.ancientD.remote
小题2:
A.preservationB.developmentC.resourceD.origin
小题3:
A.ifB.untilC.whileD.as
小题4:
A.stylesB.habitsC.waysD.means
小题5:
A.hurriedlyB.slowly C.unfortunatelyD.suddenly
小题6:
A.madeB.crashedC.mixedD.applied
小题7:
A.cultureB.nationC.influenceD.system
小题8:
A.brought upB.brought outC.brought inD.brought along
小题9:
A.afterB.asC.forD.of
小题10:
A.crossedB.drunkC.swamD.plunged
小题11:
A.touched down B.put downC.got downD.settled down
小题12:
A.evolveB.judgeC.distinguishD.rise
小题13:
A.adds to B.results fromC.turns upD.takes over
小题14:
A.but forB.for allC.due to D.at all
小题15:
A.relationshipB.differenceC.interferenceD.familiarity
填空题