这鸟，是一种美冠鹦鹉通常在澳大利亚，有独特的桃红色和灰色的羽状翼裂缝。
The birds, a kind of cockatoo common in Australia, have distinctive pink and gray feathers.
按照地层内的天然应力，裂缝的翼部沿相反方向从井筒向外延伸。
The wings of the fracture extend away from the wellbore in opposing directions according to the natural stresses within the formation.
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