双线笔

double line pen

画双线笔

double limiter 双重限制器 | double line pen 画双线笔 | double locked stitcher 双线锁边机

double line pen

双线笔

contour pen 曲线笔 | double line pen 双线笔 | drawing pen 绘图笔,鸭嘴笔

double line pen

划双线笔

double-lift lock 二级船闸 | double-line pen 划双线笔 | double-line spectroscopic binary 双谱分光双星

double-duty

双重用途

双线笔/road pen | 双重用途/double duty | 双座敞篷马车/democrat wagon

drawing pen

绘图笔,鸭嘴笔

double line pen 双线笔 | drawing pen 绘图笔,鸭嘴笔 | light pen 光笔

road pen

双线笔

雙線筆 railroad pen | 雙線筆 road pen | 雙線河流 double line stream

detacher

脱钩器

detachable speaker box 分体式立体声音箱 | detacher 脱钩器 | detail pen for double lines 划双线笔

dotting wheel

虚线轮

dotting pen 点线笔 | dotting wheel 虚线轮 | double switch 双刀开关

railroad pen

双线笔

"铁路","railroad" | "双线笔","railroad pen" | "铁路","railway"

Greco-Latin square：希腊拉丁方格

Granduation of curve 曲线递合 | Greco-Latin square 希腊拉丁方格 | Grand lot 大批

cunningham：帆前角下拉索

斜拉器:kicking strap | 帆前角下拉索:cunningham | 调整索:outhaul