交通: unobstructed等: class; grade; rank密: secret线: thread; string; wire图: picture; chart; drawing; map等密线: isodense; isopycnal; isopycnic吸附等密线: adsorption isothere等密的 等密度面 等密线: isopycnic举起；阻滞(交通等)；耽搁: hold up中等密度交通: medium heavy traffic密线: multicostellae交通路线图: circulation map公共交通等候室卫生标准: hygienic standard for waiting room of publictransit means等密: isopycnic level交通需求线图: desire line diagram普通等: normal grade普通等级: common grade; general schedule (gs); ordinary grade; ordinary quality线图: chart diagram; diag(diagram); graphic charts; line art; line charts; line graph; lines; sheer draught; sheer drawing; string diagram等密的: isophcnic等密度: isodensity; isopycnic等密流: constant specific mass flow保密线路: private line精密线纹尺: precision scale秘密线人: the secret man主致密线: major dense line
