Every type of airplane has different safety instructions.
不同类型的飞机都有不同的安全指导。
We mocked up a new type of airplane.
我们制成一种新式飞机的实物大模型。
How strongly an airplane is built depends on its type and purpose.
制造飞机应坚固到什么程度，是由飞机的类型和用途来决定的。
It has several characteristics that make it the best type of wood for an airplane.
它具有几个特点，使飞机最适合它的类型的木材。
It has several characteristics that make it the best type of wood for an airplane.
它具有几个特点，使飞机最适合它的类型的木材。
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