英语翻译Headers --- Headers are the half cylinders which provide

英语翻译
Headers --- Headers are the half cylinders which provide for the distribution of fluid from the nozzle to or from the ports of each appropriate layer within the heat exchanger.
Ports --- Ports are the opening in either the side bar or the end bar,located under the headers,through which the fluids enter or leave the individual layers.
Distributor Fins --- Distributor fins distribute the fluid between the port and the heat transfer fins.
Heat Transfer Fins --- the heat transfer fin provides extended heat transfer surface.All fins,both heat transfer and distributor,provide connecting structure between the parting sheets,which is necessary for the structural and pressure holding integrity of the heat exchanger.Typical heat transfer fin thicknesses range from 0.006 to 0.023 inches.
Parting Sheets --- The parting (separator) sheets contain the fluids within the individual layers in the exchanger and also serve as primary heat transfer surface.Typical parting sheet thicknesses range from 0.032 to 0.080 inches.
Outside Sheets --- outside (cap) sheets serve as the outside parting sheets.They are typically 1/4-inch thick and serve as an outer protective surface of the exchanger.
Bars --- The side and end bars enclose the individual layers and form the protective perimeter of the exchanger.Solid extruded bars from 1/2 to 1 inch wide are typically used.
Support Angles --- Support angles are typically 90 degree extruded aluminum angles welded to the bar face of the exchanger for the purpose of supporting or securing the exchanger in its installed position.Other support configurations are available.
bar 在这里应该不是酒吧 headers 不是这里也不是头球把 这是一篇工业论文上摘抄的 小弟才疏学浅对英语一次多意掌握不多，想请友友一起讨论下 不过下面一楼友友的翻译读起不通顺。