轍叉: frog心: the heart軌: rail; track理論: theory尖端: pointed end; external centre ...轍叉心軌尖端: actual point of frog尖軌理論尖端: theoretical point of switch rail轍叉理論尖端: theoretical nose of crossing轍叉尖端和理論尖端間的距離: distance between nose and fine nose轍尖理論尖端: vertex of switch實(shí)際轍叉心, 轍叉實(shí)際尖端: actual nose of crossing轍叉心: frog centre可動(dòng)心軌轍叉: movable-point crossing; movable-point frog; movable-pointcrossing銳角轍叉, 硬角叉心: acute frog統(tǒng)計(jì)定軌理論: statistical orbit deter mination theory; statistical orbit-determination轍叉實(shí)際尖端: blunt nose固定心軌式轍叉: rigid crossing鋼軌組合錳鋼叉心轍叉: rail bound manganese steel frog轍叉理論中心: theoretical centre of frog轍叉: [鐵道] frog◇轍叉導(dǎo)軌 lead of crossing尖端: 1.(尖銳的頂端) pointed end; external centre; external point; nib; tip; acme; peak 標(biāo)槍的尖端 the point of a javelin2.(發(fā)展得最高的) most advanced; sophisticated; apex; frontier; point 尖端產(chǎn)品 highly sophisticated products; 尖端技術(shù) sophisticated technique; 尖端科學(xué) most advanced branches of science; frontiers of science; advanced science; top sciences; 尖端武器 sophisticated weapons叉心顆石: chiasmolithus交叉心臟: criss-cross heart轍叉，岔心: frog轍叉環(huán): frog ring
