วันพฤหัสบดีที่ 13 กันยายน พ.ศ. 2555
p.70 Visual Stimulus Comprehension
The largest amd most colourful part of the balloon is called the envelope . The topmost part of the balloon has a large hole which is used to deflate the balloon on landing. This is called the parachute valave. The valve seals the hole. The lowest end of the envelope is the skirt made of flame-resistant material. It helps keep the flame directed straight up into the envelope.
To pull the parachute down out of the hole via pulleys, the pilot uses the parachute valve cord that drops down to the basket. It is this cord that helps the pilot deflate the balloon. Cores panals of fabric sewn together to form the shape of the balloon.
During the flight, the passengers and the pilot stand in the wicker Basket made from woven willow branchs for lightness, strength and flexibility. The Barner, usually made of stainless steel, are connected to the propane as a gas is an efficient fuel and creates a stronger flame.
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