[ 复数 tangles 第三人称单数 tangles 现在分词 tangling 过去式 tangled 过去分词 tangled ]
contact t angle 接触角
joint t angle 接合角钢
start t angle 起点角度
Shaft t angle 轴转角
Draft t angle 出模斜度
shift t angle 位差角
Light t Angle 灯光角度
N-COUNT A tangle of something is a mass of it twisted together in a messy way. 乱糟糟的一团
A tangle of wires is all that remains of the computer and phone systems.
乱糟糟的一团电线是电脑和电话系统留下来的全部。
V-T/V-I If something is tangled or tangles, it becomes twisted together in a messy way. 使缠结; 缠结
Animals get tangled in fishing nets and drown.
动物被缠在渔网里淹死了。
Her hair tends to tangle.
她的头发易打结。
V to come into conflict; contend 与...打架; 争执
to tangle with the police
Now, suppose in fact these weren't x and y glued together, these were radius and angle glued together.
我实际也说过了,我在这里操作的是,和这两个点。
In that case point p 1 doesn't correspond to this point, it actually corresponds to the point of radius 2 and angle 1, which is about here.
基本上也就是说这是第一个点1,这是第二个点,把它们的值加到一起,然后我就得到了目标点,好,这听起来挺不错的。
I'm using the fact that when you take a cosine and change the angle inside the cosine, it doesn't care. whereas, if you go to the sine and change the angle inside the sine, it becomes minus sine.
我用了一个结论,当你使用余弦函数时,改变角度的正负,函数值不变,而对于正弦函数,改变角度的符号,则函数值也会变号
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