的: 4次方是 The fourth power of 2 i ...背向: back on; dorsad腹背向: ventrodorsad背向摆动: backswing背向闭合: dorsal closure背向岔尖: trailing pointtch背向道岔: trail points背向渡线: trailing point crossover背向对手: your back turned to the opponent背向反射: back-reflection背向辐射: back radiation背向观众: dos au public背向加速度: backward acceleration背向排列: back-to-back arrangement背向前的: dorso-anterior背向强攻: post-uplay背向散射: back scattering; backscattering背向位置: trailing position背向行驶: trailing moverment; trailingmoverment背向行为: abient behavior背向运行: trailing movement背向中转身: face forward towards opponent背向转撤器: trailing pointer背向转辙器: trailing switch machine; trailingswitchmachine背向褶皱: back floding; backfolding; backward folding