STEM与日常科技·英语30篇（9）

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触摸屏如何精确定位你的点击

Capacitive screens hold a uniform electrostatic charge across their conductive glass surface.
Your finger disrupts this field locally, changing capacitance at that exact point.
Four corner electrodes measure the altered signal strength to triangulate X-Y coordinates.
Even light touches register because human skin conducts electricity better than air or gloves.
Multi-touch capability comes from scanning the grid rapidly—up to 120 times per second.
Water droplets confuse older systems, but modern chips filter out accidental inputs intelligently.
Screen protectors must be ultra-thin and non-conductive to avoid distorting the field.
Calibration ensures accuracy stays within ±0.5 mm after months of daily use.

听 → 读 → 学表达 → 懂 → 今天会说这一句 → 跟读录音 → 自己说一句。

Capacitive screens hold a uniform electrostatic charge across their conductive glass surface. 电容式屏幕在其导电玻璃表面均匀分布静电荷。
Your finger disrupts this field locally, changing capacitance at that exact point. 手指会局部干扰该电场，改变该点的电容值。
Four corner electrodes measure the altered signal strength to triangulate X-Y coordinates. 四个角上的电极测量信号变化强度，从而三角定位X-Y坐标。

这篇中文题目最接近哪一句？触摸屏如何精确定位你的点击一次学校运动会的通知一份超市购物清单

课文第一句的意思更接近？电容式屏幕在其导电玻璃表面均匀分布静电荷。今天学校放假了。请把窗户打开。

这一课主要在讲什么？（看英文标题） How Touchscreens Know Exactly Where You Tap How to cook noodles A maths worksheet

Capacitive screens hold a uniform electrostatic charge across their conductive glass surface.

Capacitive screens hold a uniform electrostatic charge across their conductive glass surface.

第一版：录下来、回听、再听标准音。系统打分以后再加。

用今天的表达，自己说一句。

例子：Capacitive screens hold a uniform electrostatic charge across their conductive glass surface.