短語詞組短語Chord -length 以弦長(zhǎng)為基準(zhǔn)把曲線參數(shù)化Chord d Length 弦長(zhǎng);弦長(zhǎng)度chord -length density function 弦長(zhǎng)密度函數(shù)lower chord length 上弦桿長(zhǎng)度root -chord length 翼根弦長(zhǎng)radial chord length integrals 徑向弦長(zhǎng)積分bottom chord length 下弦桿長(zhǎng)度wingtip chord length 翼端弦長(zhǎng) 返回 chord length