使用多边形套索工具(L)按住shift，创建一个三角形，以保证每条线都是直的。
Select the Polygonal Lasso Tool (l) and create a triangular shape -holding down the Shift key whilst making the triangle will ensure each side is perfectly straight.
变成另一个点，无论如何，这就是原点，最后一条边，y=0，一直变化，最终变成了v=0，and，x，varies，just，becomes，v，equals，zero。,所以，在变量替换的过程中，这个正方形变成了三角形。
So anyway, this is the origin, and then the last side, y equals zero, x So, somehow, in the change of variables, this square becomes this triangle.
它一直延伸至露台和两个游泳池——一个沿着建筑长边方向的狭长泳池，另一个是三角形水池。
It leads out to the terrace and its two swimming pools - a long narrow pool for lengths, and a triangular padding pool.
两条腿必须一直在三角形里面。
此系统由一块直棱镜(三角形楔)组成，入射光产生折射并发散，这样使得入射光的扩散更加广泛。
The system consists of a panel of linear prisms (triangular wedges) which refract and spread the incoming light to produce a more diffuse distribution.
欧元兑美元的交易在周五突破了6个月来形成的三角形模式之后，昨晚一直是窄幅震荡，交易区间为1.3668 至1.3616。
The EURUSD traded a tight 1.3668 – 1.3616 range throughout the night after breaking out of its 6 month triangle formation on Friday.
欧元兑美元的交易在周五突破了6个月来形成的三角形模式之后，昨晚一直是窄幅震荡，交易区间为1.3668 至1.3616。
The EURUSD traded a tight 1.3668 – 1.3616 range throughout the night after breaking out of its 6 month triangle formation on Friday.
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