A.計(jì)算跨徑 B.凈跨徑 C.標(biāo)準(zhǔn)跨徑 D.小跨徑
A.平整度 B.密實(shí)度 C.彎沉 D.車(chē)轍
A.相對(duì)高程B.絕對(duì)高程C.高差D.差距