[J-211]  The LED

    发光的两极真空管 

An electronics engineer was talking to a dotard, who was hard of hearing. Part of the conversation went as follows:

E: We are now really led into a new era. We are lighted by a new thing. It's the LED. Do you know what LED is?

D: No, isn't it the past tense of L-E-A-D?

E: No, it's a noun. But it's not made from lead. Nor is it pronounced “led.” It's an acronym. It's a light-emitting diode.

D: A what? A light diet?

E: A di-ode that sends out light, a vacuum tube with a cold anode and a heated cathode.

D: A new diet, indeed, since it has both cold and heated oats.

[译注]

某位电子工程师在跟一位昏瞶的老人谈话，那老人耳朵重听。对话中的一部份如下：

工程师：我们现在真的已经被带入新的时代。我们用一种新东西来照明。那就是LED。你知道LED是什么吗？

老昏者：不，那不是L-E-A-D的过去式吗？

工程师：不，那是个名词。但那不是用铅做成的，它也不发 “led” 的音。它是几个字的首字母组成的字。它是发光的两极真空管。

老昏者：一种什么？一种淡淡的定食？

工程师：一种发光的两极真空管，一种有冷的阳极和热的阴极的真空管。

老昏者：真是新的定食，既然有冷的和热的燕麦。

[复习填充]

An electronics engineer was talking to a d____d, who was _____ of hearing. Part of the conversation _____ as follows:

E: We are now really led into a new e____. We are l____ed by a new thing. It's the LED. Do you know wh____ LED is?

D: No, isn't it the past t_____ of L-E-A-D?

E: No, it's a noun. But it's not made f____ lead. Nor is it pro____ed “led.” It's an ac_____. It's a light-e_____ diode.

D: A what? A light d____?

E: A di-ode that sends out light, a vacuum t____ with a cold a_____ and a heated ca_____.

D: A new diet, indeed, since it has both cold and heated o____