前面: in front; at the head; ahead双: two; twin; both; dual行道: advocate and carry out one's ...双行道的: two-way双行道的, 两路的, 相互的: two-way双行: double row; dual inline; duplicate rows; twin row; twin-row行道: 行道[旧时用语] advocate and carry out one's point of political view前面: 1.(位置靠前) in front; at the head; ahead 前面的房间 a front room; 走在队列前面 march at the head of the column; 请往前面走。 please go ahead.2.(次序靠前) above; preceding; forepart 前面的一章 the preceding chapter; 前面提到的规则 the above-mentioned rule面双晶: plane twin双行程: double stroke; doublestroke; two-pass双行睫: distichia; distichiasis; distichy双行雷: mine strip双行铆: double riveting双行眉: duplicatio supercilii双行线: two ways双行星: the double planet; twin planet双行座: double row seating; double-row表面双电层: surface electric double layer表面双色: tarnish底面双晶: basal twinning; manebach twin; manebachtwin; manedach twin底面双晶律: manebach twin law夺面双雄: face off共面双栅管: coplanar grid tube两面双密: double side double density平面双导轨: flat double guides