他另外还说，为了得到足够强的信号来识读这些碱基，只需要将每个碱基固定大约1毫秒就可以了。
In order to get a strong enough signal to read the bases it is only necessary to trap each one for around a millisecond, he says.
不过当一个非常大的细胞发出一个非常强的信号(好几十毫伏！)而且距离电路板1毫米以内的时候我们的设备还是可以抓到信号的。
But yes, when an extraordinarily large cell fired off a massive signal (many tens of millivolts!) within a millimeter of the plate, we could pick it up with our apparatus.
CFL一般含汞量为5毫克；严兆强说他的一些小灯泡汞含量不到两毫克。
CFLs typically have about five milligrams of mercury; Mr. Yan says some of his smaller bulbs have fewer than two milligrams.
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