直尺的英文：
Ruler
straight-edge

参考例句：
  • Straight edge
    刀口形直尺
  • He has got a ruler.
    他有一把直尺。
  • With straightedge and compasses, divide a segment of a into 2 parts.
    用直尺和圆规把线段a分成两部分。
  • The child used a ruler to draw straight lines.
    这孩子用一把直尺划直线。
  • I have got a ruler. Will that do?
    我有一把直尺。能行吗
  • a square having a metal ruler set at right angles to another straight piece.
    有一根金属尺子安装在另一根之上成直角的直尺。
  • Each step of the construction of a circle with straightedge and compass calls for finding a point of intersection
    用圆规、直尺作圆的每一步都需要找一个交点。
  • A straightedged strip,as of wood or metal,for drawing straight lines and measuring lengths.
    尺，直尺，划线用木头或金属等制成的直角的条，用于划直线和测量长度
ruler是什么意思：
n. 统治者；尺
  • Dictators are arbitrary rulers.
    独裁者即独断专横的统治者。
  • He was once a potent ruler.
    他曾经是有权势的统治者。
  • Circumstances are the rulers of the weak, instrument of the wise.
    弱者困于环境，智者利用环境。
straight是什么意思：
adj. 直的；正直的；直率的；连续的；整齐的
adv. 直接地；坦率地；立即；不断地
n. 直线
  • straight or on the rock
    纯的或加冰块
  • make(sth)straight or level
    使（某物）变直或变平
  • Straight trees have crooked roots
    直树也有曲根
edge是什么意思：
n. 边，边缘；刀，刀口
v. 使徐徐移动；给...加边
  • The number of incoming edges is equal to the number of outgoing edges
    进入的线数等于离去的线数。
  • pipe edges sewing machine
    滚边缝纫机
  • Sloth turneth the edge of wit
    懒惰会磨去才智的锋芒

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