Based on geometry alignment data and speed difference, by stat . formula are established about the relation between downgrade, curve radius and deflection and speed change . then method to establish speed characteristic curve is present 依據(jù)樣本路段的幾何線形數(shù)據(jù)和速度變化特征,利用統(tǒng)計手段得出了縱坡坡度、平曲線半徑和偏角等線形指標與速度變化之間的關(guān)系公式,根據(jù)這些公式,給出了一定線形組合求解速度特征曲線的方法。
alignment data of the cep sequences from different animals showed that amphiubf80 was not only similar to vertebrate ubf80 but also to invertebrate ubf80 . in addition, its c-terminal sequences, 69-cltfvynk-76, shared both the vertebrate-specific ubf80 consensus ( 69-cltycfnk-76 ) and the invertebrate counterpart sequences 通過對hmgb基因的系統(tǒng)進化分析,發(fā)現(xiàn)文昌魚amphihmgb基因可能摘要代表了脊椎動物劫甘‘bl、從牙‘bz和廳材‘b了基因分化前的一種前體基因型。