圆规

bin

垃圾箱

先离开地下室,到外面将垃圾箱(Bin)顶在头上,返回地下室,骗走机器人. 拉下红色的控制杆,中间的门便开了,用撬棍撬开右下角的抽屉(Drawer),取出圆规(Compass) 、地图(Map)和微型胶卷(Micro Film)后离开,回到大楼里. 江森来到图书馆里,

Bourne

界线,境界

"勘界测量","boundries location" | "界线,境界","bourne" | "小圆规,量规,精密小圆规","bow compass"

caliber gauge

外径卡规, 厚薄规

caliber compasses | 弯脚圆规, 微调小圆规 | caliber gauge | 外径卡规, 厚薄规 | caliber radius head | 弹头蛋形部曲率半径(以口径为单位)

compasses

分规

compasses for workshop 车间用圆规 | compasses 分规 | compasses 圆规

pencil-box pencil-case

铅笔盒

compass圆规 | pencil-box pencil-case 铅笔盒 | compass圆规

trisection of an angle

三等分角[问题]

三等分角问题(trisection of an angle)是二千四百年前,古希腊人提出的几何三大作图问题之一,即用圆规与直尺把一任意角三等分.问题的难处在于作图使用工具的限制.古希腊人要求几何作图只许使用直尺(没有刻度,只能作直线的尺)和圆规.这问题曾吸引着许多人去研究,

bow divider

弹簧分规,小分规

"弹簧圆规;小圆规","bow compass" | "弹簧分规;小分规","bow divider" | "弹簧圆规或分规","bow instrument"

compass calipers

量圆卡

compass bow 小圆规 | compass calipers 量圆卡 | compass for drawing 绘图用圆规

compass; earth induction

地磁感应罗盘

"compass; caliber","巽脚圆规" | "compass; earth induction","地磁感应罗盘" | "compasses","圆规"

wing divider

圆规型边线器

16 awl 锥子 | 17 wing divider 圆规型边线器 | 18 overstitch wheel 间距轮

of a composite function：复合函数之导数

Derivative :导数 | of a composite function :复合函数之导数 | of a constant function :常数函数之导数

enriched lake：富营养湖

LRPA Long-Range Patrol Aircraft 远程巡逻飞机 | enriched lake 富营养湖 | bang it about 决胜负 诉诸武力