(a) Aeronautics the parts of an aircraft whose failure would seriously endanger safety; (b) Biochemistry the first level of complexity in the…
单词 | θ207753 |
释义 | society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > [noun] > essential structural parts (1) primary structure1939 (a) Aeronautics the parts of an aircraft whose failure would seriously endanger safety; (b) Biochemistry the first level of complexity in the… |
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