The design and making process of alternating electric torches most commonly used in the optical experiment are presented.
本文介绍在光学实验中最常用的照明工具,用交流电作电源的手电筒的设计与制作过程。
a leakproof flashlight battery
不会漏电的手电筒电池
put up the tent by torchlight
用手电筒照着搭帐篷
He shone the flashlight on the water.
他用手电筒照了照水面。
She flashed the torch as a signal.
她用手电筒发信号.
flash light bulb
闪光灯灯泡手电筒灯泡
Shine the torch up into the rafters,please.
请把手电筒向上照屋椽。
Shine your flashlight over here.
把手电筒往这儿照一照。
Lend me your flashlight,will you?
把手电筒借我用用好吗?
The beam of a flashlight played across the room.
手电筒的光照过房间。
He flashed the torch on for a second.
他把手电筒亮了一下。
the beam of the torch, searchlight, etc
手电筒、 探照灯等的光束
special equipment for making electric torch
手电筒生产专用设备
electric lamp (bulb), filament for portable flashlights, battery or magnetolamps
白炽电灯（泡）,手电筒,电池灯或磁电灯用
filament electric bulb for portable flash-lights, battery or magneto lamps
手电筒、电池灯或磁电灯用的白炽灯泡
The flash-lamp was knocked from her hand and blinked out.
手电筒从她手中打掉了，熄灭了。
these kits should include drinking water, a flashlight with fresh batteries, and dry food.
内有饮水、备有新电池的手电筒及干粮。
Most flashlights work on two batteries.
大多数的手电筒用两节电池。
He keeps a flashlight in the cupboard in case of a blackout.
他在橱柜上放了一只手电筒，以防停电。