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。

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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。

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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。

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He also standardized the guts of LCDs, navigational gear, black boxes, instrument landing systems and weather radar, sharing technologies and components.

FORBES: Top Gun

Set-top boxes will be on display from industry leaders such as General Instrument and Scientific-Atlanta.

CNN: Set-top boxes, home networking grow up

Meanwhile, General Instrument, based in Horsham, Pennsylvania, stuck to older-design analog boxes.

FORBES: Boxed in?