直尺

RDB直尺的两类刻度分布模型

Two models of marks distribution of RDB ruler

采用实验的方法，利用标准钢丝样本和直尺样本，先采用DR成像的方法大致确定投影中心的位置，然后利用黄金分割点逼近准确位置。

The experimental method was adopted , and the standard steel wire sample and ruler sample were utilized . Firstly determine approximately the position of projection center by adopting the method of DR imagery , and then approaches the accurate position by means of point of golden section .

用直尺比照着，将布料裁剪成合适的尺寸。

Using the straight edge as a guide , trim the cloth to size

数显3m直尺式平整度仪的设计与测量原理

The design and measuring principle of the digital three-meter ruler evenness measuring instrument

数显3m直尺式平整度仪综合精度分析

The analysis of comprehensive precision about the digital three-meter ruler evenness measuring instrument

3m直尺用于热铺层平整度检测时的热变形现象分析

Distortion Phenomenon Analysis of 3m Ruler Used in the Test of Hot Surface Smooth

Terrell等人对高速运动物体（直尺、立方体等规则物体）视觉形象的讨论，并进一步探讨了任意形状的高速运动物体的总体视觉形象，给出简明、普适的结果且易于用计算机模拟。

Further discussion of total vision image of any shape objects at high speed has been probed into . The concise and universal result and the method easily simulating with computer have been given .

用游标卡尺（精确度0.02mm），直尺（精确度1mm），圆规和量角器，以股骨内上髁水平为标志点对各神经肌支及其终支的位置、粗细和长度进行测量。

The level of medial epicondyle of femur was taker as mark point to measure the position , thickness and length of all muscle nerves and their final branches with vernier caliper ( Accuracy is 0.02mm ), straightedge ( Accuracy is 1mm ), compasses and protractor .

样板直尺测量面直线度公差值的研究

The Investigation on Linearity Tolerance Value of Straight Edge Measurement Plane

一根直尺作二次曲线切线的问题

On a Tangent Line of Quadratic Curve By Only a Ruler

汤姆要的是角尺而不是直尺。

Tom wanted an angular rule instead of a straight one .

点位放样的直尺法及精度分析

The Straight Edge Method of Point Laying-out and Its Precision Analysis

伺服比例阀、光栅直尺与数控机床

Proportional servo valve , grid ruler and CNC machine tool

我有一把直尺。能行吗？

I have got a ruler . Will that do ?

这孩子用一把直尺划直线。

The child used a ruler to draw straight lines .

老师走进教室，手里拿着一把直尺。

The teacher came in and a ruler was in his hand .

他拿着一根直尺，走着小舞步发出咔哒咔哒的声音。

He holds a ruler and clatters about with little dancing steps .

在胸部高度的位置，用一把直尺量度干径。

At breast height , measure the trunk diameter by a ruler .

这个木工平面设计师每天都要用卷尺或直尺。

This woodworker-graphic designer uses a tape measure or ruler almost every day .

用直尺比照着，将布料裁剪成合适的尺寸。笔直地；

Using the straight edge as a guide , trim the cloth to size .

拿出直尺，画条线；

Take out a ruler draw a line .

用直尺和圆规把线段a分成两部分。

With straightedge and compasses , divide a segment of a into 2 parts .

直尺的修复主要依赖传统的手工刮削方法获得很高的形状和位置精度。

Precision repair mostly depends on traditional scrape .

有一根金属尺子安装在另一根之上成直角的直尺。

A square having a metal ruler set at right angles to another straight piece .

利用莫阿条纹检验直尺刻度

Test Scale of Straightedge Using Morire fringe

长期存在的问题，指南针和直尺建设的最后解决伽罗瓦理论。

Long standing questions about compass and straightedge construction were finally settled by Galois theory .

两个卡边上都有刻度并垂直于直尺。

Both the clamping edges are provided with scales and are perpendicular to the ruler .

一根直尺作图的探讨

Research of drawing with a ruler

他有一把直尺。

He have get a ruler .

非常规法直尺精度修复

Non-conventional Precision Repair of Standard Rule