JT/T 681.1-2007 Navigation radar on inland waterway vessels Part 1: Performance requirements. 1范围 JT/T 681.1规定了内河船舶导航雷达整体性能、分机性能、操作和控制等要求。 JT/T 681.1适

JT/T 680.5-2007 Technical requirement for the intallation, operation, maintenance and repair of marine navigation equipment Part 5: Electromagnet log.

JT/T 680.6-2007 Technical requirement for the installation, operation, maintenance and repair of marine navigation equipment Part 6:Gyropilot. 1范围 JT/

JT/T 680.7-2007 Technical requirement for the installation, operation, maintenance and repair of marine navigation equipment Part 7:Doppler log. 1范围 J

JT/T 680.8-2007 Technical requirement for the installation, operation, maintenance and repair of marine navigation equipment Part 8:Acoustic correlati

JT/T 680.9-2007 Technical requirement for the installation, operation, maintenance and repair of marine navigation equipment Part 9: Magnetic compass.

JT/T 680.10-2007 Technical requirement for the installation, operation, maintenance and repair of marine navigation equipment Part 10: VHF radio set.

JT/T 676-2009 Vehicle bearing road laser profilometer. 1范围 JT/T 676规定了车载式路面激光平整度仪(以下简称激光平整度仪)的产品结构、技术要求、试验方法检验规则、标志.包装,运输和储存等内容。 JT/T 676适用于应用激光技术和计算机

JT/T 677-2009 Vehicle bearing road laser rut-meter. 1范围 JT/T 677规定了车载式路面激光车辙仪(以下简称激光车辙仪)的分类与结构、技术要求、试验方法、检验规则.标志.包装,运输和储存等内容。 JT/T 677适用丁应用激光技术、数字成像技术

JT/T 678-2007 Vehicle bearing road laser video distress detecting system. 1范围 JT/T 678规定了车载式路面激光视频病害检测系统(以下简称漱光视频病害检测系统)的工作原理与结构,技术要求,试验方法,检验规则,标志、包装、