Instrumentation shields are to be grounded ONLY at the control panel end unless specified in project drawings.

除非项目施工图纸另有规定，否则只能在控制面板端对仪器仪表护罩进行接地。

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The remaining 15% of first-half sales came from the aviation segment, which offers a comprehensive line of panel-mounted and portable products, including completely integrated systems that deliver flight instrumentation, location, navigation, communication and identification data.

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