相信大家都曾在工作、学习中接触过各种样式的图表，很多英语水平测试也会要求考生针对不同类型的表格、示意图来回答相应的问题。单词“table、diagram、graph”和“chart”都含有“图表”的意思，它们之间有哪些不同？每一类图表的用途分别是什么？本集《你 ...

A phase vector or phasor in physics and engineering signifies a sine wave whose amplitude and frequency are time-variant. The behavior of a sinusoid is decomposed by phasors into three independent ...

Whether you are sketching graphs in mathematics, understanding directions in geography, or reading blueprints in design class, horizontal and vertical lines are concepts you cannot avoid. They form ...