天方舟的个人资料

英语帝谢谢先 The centripetal pump discharges the clarified oil under pressure. It operates on the reverse principle as a centrifugal pump. In the latter case the impeller, which has inclined vanes, rotates in a stationary casing. The liquid being pumped flows out from within the pump throngh the impeller vane channels. The reverse is the case with the centripetal pump. It is fixed to the hood of the separator, and its disc which is provided with channels, is immersed in the liquid rotating with the bowl. The oil is peeled off by the centripetal pump and flows into its spiral channels from outside, its kinetic energy being converted into pressure energy. When the back pressure is low, the depth of immersion of the centripetal pump in oil is small. It can, however, be increased by throttling the valve in the discharge line. In this way a good liquid seal is obtained and the liquid does not come into contact with the air and remains free of foam. In addition, high back pressure is obtained, so that delivery heads of up to max.20m water column ban be achieved.

翻译帝请进贵妇姐姐、语言与文化先生、阳雪松同学请现身十万火 Developments in lamps and fittings over the past twenty years have solved many problems such as energy consumption, ambient temperatures, shock and vibration effects. Light sources are now available for mounting in the restricted spaces between ceiling and deck. The technique of providing the correct kind of illumination and degree of brightness, particularly in passenger ship is a matter for lighting specialists. Suffice it to say that in a passenger ship each of the public spaces, e.g. lounges, dining rooms, bars, cabins, etc., will require different treatment. Nevertheless crew accommodation in cargo ships including tankers, tends to reach a higher standard of comfort and also deserves specialist attention. The importance of adequate and effective lighting in machinery spaces needs no emphasis. Machinery rooms are usually of great height and obstructed by gangways, piping and other interference. Narrow beam light sources, e.g. 250w fluorescent-reflector lamps in firings with integral control gear, are desirable. A suitably constructed fitting requires practically no maintenance being independent of atmospheric pollution. Local lighting of gauges switchboards, etc. requires higher illumination levels. Fittings with fiberglass bodies reduce maintenance, i.e. no painting or rust problems. In boiler rooms heat problems must be taken into to maintain the correct lumen output. For the shaft funnel fluorescents diffusing fittings are most suitable. Fluorescent lamps are unsuitable for refrigerated spaces unless the temperature is high than -5oC. At lower temperature starting can be slow and light output poor. A suitable light source is the mercury fluorescent lamp which operate down to -5oC.

好心人快出来帮帮忙…………谢谢！！ <?xml:namespace prefix = v ns = "urn:schemas-microsoft-com:vml" /> <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

〔求英文名字〕个位大神帮帮助，给个好听的英文名字明天就上这个学期的第一节由来自米国的外教的课，上课之前想取个好英文名字。

〔告别〕在回学校的路上，谢谢英语吧陪我度过这个寒假！这个寒假经常在英语吧里泡，多数时候只看贴，了解到了吧内好多常客，如车兄，姐姐，语言即文化，新兰…回学校去了，特来道别，谢谢吧内的朋友！

等待2.14的到来说出想对心中的TA的心里话

11月11日多少人要过节的？我来送上节日的祝福！！节日快乐！！

真相帝为什么武昌火车站那么黑？明明很多车路过，就是说没有，只卖动车票，跟那些乱开药的黑医生一样，难道这也有提成？

无聊发帖来顺便聊天浮云…………

已经是会员发帖毫无鸭梨呵呵…………

无敌时刻结束了？不是要开启无敌模式的么？河蟹啊 …………

假如我爸不是李刚，那？我爸是李刚的年代，我们风光无限。那，假如我爸不是李刚，那会怎样呢？

刷完两贴求会员徽章 RT

刷完两贴求会员徽章哦是阳新人，恩是门？做个朋友洒？

让曙光到来的地方听见我们的声音天亮了，早安…………

夜，渐渐的深了，各位大帝接下来最想做什么呢？ RT

【求助】我的贴吧ID被封了我该怎么办？我的ID 在英语吧被封了，我该怎么办？

What should I do if u are not the one for me ? tell me why ,I just want to make out what the problem is .And then,what should I do .Please give me a hand.

【求助】谁能助我粉丝数超过两位数？（有本事在删我的贴）粉一下又不会受精的，人家会秒回的嘛！！

早安部落大家早上好赶早起来了一回，早上好，一夜不眠的朋友，现在是关上电脑去休息的时候了。早安！

13岁儿童勇入长江救二十岁溺水青年不幸沉江事发武汉汉阳门江边

七夕，凄兮？凄兮！！！七夕，雨；凄兮，泪！！七夕，窗外下着雨。TA却在远方，给TA发短信打电话，TA却没有反应。七夕，凄兮也！！祝相好的情人们快乐，和我一样的就和我一起悲伤。祝福有情人！

大学别业了，还是家里蹲好！！现在的世界，大学毕业了，只好去家里蹲。而我今年虽然还没有毕业，暑假照样家里蹲！！没有毕业的同学们，你是怎样过这个热的暑假呢？

法国没戏他唱了，英格兰也没舞台了，而德国即将失去观众！顶德国！

内向人怎么过端午节的？我们都是内向人，端午节过得好平淡啊！你是怎么度过端午佳节的？

圣战打完了，我们干嘛去？圣战打完了，像是狗吠声的道歉声，也充满了网络，它们的火箭变成了焰火，下一步我们该干嘛呢？

内向吧征婚启事哥来内向吧征婚，先来自我介绍下：哥穷哥丑，哥还是农村户口！凤姐就不用来了，我不够那个格，免得你我都失望；春哥也不用来了，菊花还没有开放，免得人说我是那个… 还是现实点…

回复回复两天后高三党就要上所谓的战场，为高三党祝福！！一年一度的高考临近了，我们为高三党结束高中生涯，进入新的行列而祝福，高三党是我们应该关注的的一大党，给高三党祝福了，留下个脚印啊…………