皮托靜壓探頭、總溫探頭和迎角葉片用來提供大氣數據信息給不同的應用系統，他們位于前機身在右側。因為所有的探頭及葉片都暴露在氣流里，需要加熱以防止結冰。結冰可以導致所有數據的丟失或輸入錯誤信息。

(6) The drain anti-icing system prevents ice buildup on the drains from the toilets and lavatory sinks. The aft toilet drain heater is embedded in gasket between the drain tube and the drain outlet fitting. The lavatory sink drain heater are integrated with the drain mast. The power supply for the toilet drain heaters is 115 volts ac and for the lavatory sink drain is 115 volts ac or 28 volts ac.

排水防冰系統防止在衛生間及其水池的排水裝置上積冰。后廁所加熱器用墊片嵌入在排水管道與外流排水裝置之間。廁所洗手池加熱器與排水豎管連在一起。為廁所排水管加熱用的是 115V直流電，為廁所洗手池加熱用的是 115V直流或 28V直流電。
LESSON 8 THE POTABLE WATER SYSTEM飲用水系統
一、單詞
飲用水  Potable water 浪廢  Waste 由 …組成  Be composed of
油箱  tank 數量  Quantity 制作  Construct
支架  bracket  3.785公升  U.S. gallon  4.546公升  Imperial gallon
園筒形的  Cylindrical 覆蓋層  blanket 充注管道  Fill line
外泄管道  Overflow line 水量傳感器  Quantity transmitter 容積  Capacity
簧片  Reed 二極管  Diode 浮子  Float
磁鐵  Magnet 包圍  Surround 標明  Label
關聯的  associate 相應的  corresponding 空  emptiness

二、TEXT
(1) the potable water system supplies potable water to the galleys and lavatories. The waste system is for storing and removing waste from the toilets. The water and waste system is composed of independent but related systems.

飲用水系統為機上廚房及衛生間提供飲用水。水系統是用于貯水及排放衛生間廢水飲用水及廢水系統是由相互獨立并相互關聯的系統。

(2) The potable water system consists of a water tank, quantity indication, pressurization components, and distribution tubing. The water tank and pressurization components are located aft of the aft cargo compartment. The quantity indication is in the aft section of the passenger cabin.

飲用水系統由一個水箱、流量指示器、增壓組件及分配管道組成。水箱及增壓組件位于后貨艙的后面，流里指示器位于客艙后部。

(3) The water tank stores potable water for use by the passengers and crew.the tank is constructed of fiberglass and attached by struts and mounting brackets to the airplane structure. The 30 U.S. gallon tank is cylindrical. It is protected from freezing by a 3-pieces fiberglass blanket. On the upper section of the tank are connections for the air pressure line, fill line, overflow line, supply line, and a quantity transmitter, the fill and overflow valve is used to fill the tank to the capacity determined by a standpipe, this

valve is operated a handle. A drain valve is located on the bottom of the tank.
水箱用以貯存供旅客及機組使用的飲用水。水箱由玻璃纖維制成，并固定在飛機桁架上。30加侖的圓柱形水箱。用三個玻璃纖維墊片防止結冰。水箱上部連結著一個空氣連接管道，充注管道，過流管道，供水管道及一個流量傳感器，注水及過流閥此閥門被一個手柄控制。一個排放活門被安裝在水箱底部。