净空线的英文

• clearance line

• 净空    headroom; freeboard; clearan ...
• 线    thread; string; wire
• 空线    disengaged line; dead line; [电学] idle wire; free line; idle line◇空线信号 [讯] free line signal
• 净空    headroom; freeboard; clearance◇净空高度(拱梁等下面) head room; 净空损失 clearance loss
• 抽空线    vacuum pump line
• 多空线    dkx
• 放空线    droout line; drop-out line
• 高空线    overhead cable
• 航空线    air line; air route; airline; airway; an aerial line
• 架空线    aerial conductor; aerial extension; aerial line; aerial wire; air line; air wire; airline; hook-uwire; open wire; overhead conductor; overhead lines; overhead wire; pole line; skyline; suspension line; track line; trolley wire; trolly wire
• 空线，电路    airline，base line
• 类空线    spacelike line
• 天空线    skyline
• 无空线    no lines; no-lines
• 真空线    vacuum line
• 架空线路，架空线    overhead line, overhead wire
• 层高，净空    headroom, headway
• 低净空    low clearance
• 底净空    underclearance
• 净空,净洗    purge, purging
• 净空道    clear way
• 净空灯    clearance lamps; clearance light
• 净空高    clear head; clear height; free height
• 净空间    clear space; clear spacing
• 净空数    clearance number