[计]光笔（等于lightpencil）

light pens───[计]光笔（等于lightpencil）

light upon───偶然遇见

light on───偶然遇见（碰见，发现）；停落于

lighten───vi.减轻；发亮；vt.使照亮；使轻松

flight plan───飞行计划

light opera───轻歌剧

lights upon───偶然遇见

flight pay───飞行津贴

light ales───n.淡啤酒，低度啤酒

Input devices include keyboards and pointing devices such as mouse joystick track ball or light pen.───输入设备包括键盘和点击设备如鼠标，操纵杆，跟踪球或光笔。

One product receiving rave reviews is drag draw a light pen and eraser set that lets kids draw whatever they want on the wall via a laser projector.───其中最受好评的是可以让小朋友随意在特制墙面上涂鸦的魔术刷、魔术橡皮擦、魔术棒，以及用一种雷射投影器所组成的涂鸦桶。

method, which is for picking up the image coordinates of the measured feature points in the light pen vision coordinates measurement system, is proposed.───提出了光笔式视觉坐标测量中被测特征点像面坐标的提取方法。

A system of a specially designed terminal and light pen.───一种由特殊构造的终端和一支光笔组成的系统.