In general, instrument boxes are not required for local transmitters.
现场变送器一般不采用仪表保护箱。
I bought shoes, pens and mathematical instrument boxes that were needed to get children back to school and was also able to give out of this money financial help for a child who needed heart surgery.
我（用这笔钱）为孩子们购买了鞋子、钢笔以及数学工具盒等返校所需的必需品，并且将剩余部分捐给一个需要做心脏手书的孩子。
Block diagram: a diagram of a system, instrument, computer, or program in which selected portions are represented by annotated boxes and interconnecting lines.
框图：用线框把一个系统，仪器，电脑或程序的主要部份围绕，并用线把它们注的图示。
Instrument signal wiring junction boxes shall not be used for electrical cables.
仪表信号接线箱不能用于电力电缆。
Instrument signal wiring junction boxes shall not be used for electrical cables.
仪表信号接线箱不能用于电力电缆。
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