作业帮求翻译,不要直接软件翻译的
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/16 10:56:05
求翻译,不要直接软件翻译的
Passage 1
Petroleum(also called crude oil), in the unrefined or crude form, like many industrialfeedstocks has little or no direct use and its value as an industrial commodityis only realized after the production of salable products. Even then, themarket demand dictates the type of products that are needed. Therefore, the valueof petroleum is directly related to the yield of products and is subject to thecall of the market.
Petroleumrefining, also called petroleum processing, is the recovery and/or generation ofusable or salable fractions and products from crude oil, either by distillationor by chemical reaction of the crude oil constituents under the effects of heatand pressure. Synthetic crude oil, produced from tar sand (oil sand) bitumen,is also used as feed stocks in some refineries. Heavy oil conversion, aspracticed in many refineries, does not fall into the category of synthetic fuels(syncrude) production. In terms of liquid fuels from coal and othercarbonaceous feedstocks, such as oil shale, the concept of a synthetic fuelsindustry has diminished over the past several years as being uneconomical inlight of current petroleum prices.
Asthe basic elements of crude oil, hydrogen and carbon form the main input into arefinery, combining into thousands of individual constituents and the economicrecovery of these constituents varies with the individual petroleum accordingto its particular individual qualities, and the processing facilities of a particularrefinery. In general, crude oil, once refined, yields three basic groupings ofproducts that are produced when it is separated into a variety of differentgeneric, but often overlapping fractions. The amounts of these fractionsproduced by distillation depend on the origin and properties of crudepetroleum. (282 words)
Passage 1
Petroleum(also called crude oil), in the unrefined or crude form, like many industrialfeedstocks has little or no direct use and its value as an industrial commodityis only realized after the production of salable products. Even then, themarket demand dictates the type of products that are needed. Therefore, the valueof petroleum is directly related to the yield of products and is subject to thecall of the market.
Petroleumrefining, also called petroleum processing, is the recovery and/or generation ofusable or salable fractions and products from crude oil, either by distillationor by chemical reaction of the crude oil constituents under the effects of heatand pressure. Synthetic crude oil, produced from tar sand (oil sand) bitumen,is also used as feed stocks in some refineries. Heavy oil conversion, aspracticed in many refineries, does not fall into the category of synthetic fuels(syncrude) production. In terms of liquid fuels from coal and othercarbonaceous feedstocks, such as oil shale, the concept of a synthetic fuelsindustry has diminished over the past several years as being uneconomical inlight of current petroleum prices.
Asthe basic elements of crude oil, hydrogen and carbon form the main input into arefinery, combining into thousands of individual constituents and the economicrecovery of these constituents varies with the individual petroleum accordingto its particular individual qualities, and the processing facilities of a particularrefinery. In general, crude oil, once refined, yields three basic groupings ofproducts that are produced when it is separated into a variety of differentgeneric, but often overlapping fractions. The amounts of these fractionsproduced by distillation depend on the origin and properties of crudepetroleum. (282 words)
使用双线电机作为一个单极电机,每个绕组的两根导线连接串联和连接点为中心抽头.绕组1在图1.4所示,这种方式连接.
使用双线电机作为一个双极电机,每个绕组的两根导线并联或串联连接.缠绕在图1.4所示并行连接,这使得低电压,高电流操作.绕组1在图1.4显示了一系列连接;中心抽头,如果被忽略,这使得在一个较高的电压操作及低电流比将并行绕组的使用.
应当指出,基本上所有的6线使用双极出售电机实际上伤口采用双线绕组,使外部连接,可作为一个中心抽头实际上是连接缠绕在图1.4 1所示.自然,因此,任何单极电机可能被用来作为一个双极电机在额定电压的两倍,一半的铭牌上给出的额定电流.
作为一个单极电机运行双极电机,或正确的工作电压为双线电机系列电机绕组的问题不是小事,因为它可能首次出现.有三个问题：电线的电流承载能力,冷却电机,避免驱动电机的磁路饱和.热考虑建议,如果绕组系列有线,电压应只可提出由2的平方根.在电机的磁场,取决于安匝数;两个半绕组串联运行时,圈数增加了一倍,但因为一个精心设计的电机,接近饱和磁路电机运行在其额定电压和电流,增加安匝,不作任何领域更强.因此,当电机运行中的两个系列半绕组,电流应减半,以避免饱和;或者,换句话说,应该是相同的,因为它是整个电机绕组的电压.
对于那些打捞旧电机,找到一个8线电机构成了挑战!8电线是哪个?也不是很难找出使用欧姆表,交流电压表,和一个低电压交流源.首先,使用欧姆表来确定电机通过电机绕组相互连接的导线.然后,低电压交流电源连接到其中一个绕组.交流电压应低于公布的工作电压电机,建议在1伏特的电压.电机的磁路几何保证一个双线绕组的两根导线将强烈的交流信号耦合,而应该几乎没有其他两条线的耦合.因此,探讨与交流电压表应披露的其他三个绕组配对下电源的绕组
这样可以么?
再问： 什么玩意，别胡闹行吗
使用双线电机作为一个双极电机,每个绕组的两根导线并联或串联连接.缠绕在图1.4所示并行连接,这使得低电压,高电流操作.绕组1在图1.4显示了一系列连接;中心抽头,如果被忽略,这使得在一个较高的电压操作及低电流比将并行绕组的使用.
应当指出,基本上所有的6线使用双极出售电机实际上伤口采用双线绕组,使外部连接,可作为一个中心抽头实际上是连接缠绕在图1.4 1所示.自然,因此,任何单极电机可能被用来作为一个双极电机在额定电压的两倍,一半的铭牌上给出的额定电流.
作为一个单极电机运行双极电机,或正确的工作电压为双线电机系列电机绕组的问题不是小事,因为它可能首次出现.有三个问题：电线的电流承载能力,冷却电机,避免驱动电机的磁路饱和.热考虑建议,如果绕组系列有线,电压应只可提出由2的平方根.在电机的磁场,取决于安匝数;两个半绕组串联运行时,圈数增加了一倍,但因为一个精心设计的电机,接近饱和磁路电机运行在其额定电压和电流,增加安匝,不作任何领域更强.因此,当电机运行中的两个系列半绕组,电流应减半,以避免饱和;或者,换句话说,应该是相同的,因为它是整个电机绕组的电压.
对于那些打捞旧电机,找到一个8线电机构成了挑战!8电线是哪个?也不是很难找出使用欧姆表,交流电压表,和一个低电压交流源.首先,使用欧姆表来确定电机通过电机绕组相互连接的导线.然后,低电压交流电源连接到其中一个绕组.交流电压应低于公布的工作电压电机,建议在1伏特的电压.电机的磁路几何保证一个双线绕组的两根导线将强烈的交流信号耦合,而应该几乎没有其他两条线的耦合.因此,探讨与交流电压表应披露的其他三个绕组配对下电源的绕组
这样可以么?
再问： 什么玩意，别胡闹行吗