压舌板，老花镜，和医用钳子以及类似的产品被划分为第一类设备，并且在很大程度上是免于机构评估的。
Tongue depressors, reading glasses, forceps and similar products are called Class I devices and are largely exempt from agency reviews.
他们转向如电视、电脑、互联网、录像带、光盘和音频设备一类的电子媒体，按下按钮就可自娱自乐。
They turn to electronic media such as television, computers, the Internet, videos, CDs and audio equipment, which can provide them with instant self-entertainment at the push of a button.
第一类包括原装设备制造商，例如将买来的量表装在他们的汽车里的汽车制造商，和购买产品用于自己消费的公司用户。
The first category includes original equipment manufacturers, such as automakers, who buy gauges to put in their cars, and users, which are companies that purchase products for their own consumption.
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