以: use; take增加: increase; raise; add瞄准: take aim; hit the target基线: base line; ground line; base长度: length; longitude; size; ext ...瞄准基线长: sight radius瞄准基线: sight radius; string alignment基线长度: b extent; base length; course distance; length of base垂直瞄准基线调整: elevation alignment干涉仪基线长度: interferometer base基线长: base length线长度: line length水准基线: leveling base瞄准基长: sighting radius剥线长度: stripping length垂线长度: lp length of perpendiculars等候线长度: queue length公法线长度: base tangent length; common normal length; length of common normal拱线长度: line of apsides管线长度: length of pipeline光线长度: ray length火线长度: fire perimeter连线长度: wire length量周线长度: girth路线长度: course length