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我国研制的新型消雾无人机在加速飞往雾霾区域的过程中,它的( )
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2014年3月17日我国除雾无人机测试成功可有效清除雾霾除雾无人机被安装在滑翔伞下面当它们在空中飞行
地面
树木
楼房
滑翔伞
遥控无人机平飞转弯过程中
关于无人机实践应用下面描述正确的是
无人机升空作业,应遵循相关许可规定
直升机飞临空域,无人机应提前降落
直升机飞临空域,无人机不得升空作业
危化品泄漏区域,无人机空中侦察应谨慎使用
在开展课外活动时小李同学遥控一小型无人机匀速竖直上升无人机匀速竖直上升过程中无人机的动能重力势能以上
读我国大陆某时段雾霾分布图完成1---2题1.雾霾的分布特征为
主要分布在东部季风区
主要分布在东部沿海经济带
西部地区无重霾分布
地势越低,雾霾越严重 2. 重霾天,人们期盼冷空气来临,是 因为 A.降温能消霾 B.大风能消霾 C.__能消霾 D.干冷能消霾
关于飞行安全策略功能检测方法中一键返航功能测试
将组装好的无人机巡检系统(搭载全套任务荷载)放置在准备区域指定位置,完成无人机巡检系统展开和自检;
设置返航路径,并以自主方式放飞无人机;
待无人机短时飞行后,启动一键返航功能,观察无人机安全返航策略及等待无人机返回;
待无人机降落后,以自主方式放飞无人机;
无人机短时飞行后,启动一键返航功能,将无人机自动按照原航线返航,观察无人机安全返航策略及等待无人机返回。
我国研制的新型消雾无人机在加速飞往雾霾区域的过程中它的
动能增大
质量增大
合力为零
运动状态不变
回航过程中应____地降低无人机高度
我国研制的新型消雾无人机在加速飞往雾霾区域的过程中它的
动能增大
质量增大
合力为零
运动状态不变
2014年3月17日我国除雾无人机测试成功可有效清除雾霾.除雾无人机被安装在滑翔伞下面当它们在空中
地面
树木
楼房
滑翔伞
2014年3月我国除雾无人机测试成功可有效清楚雾霾除雾无人机被安装在滑翔伞下面当它们在空中飞行到指
2014年3月17日我国除雾无人机测试成功可有效清除雾霾除雾无人机被安装在滑翔伞下面当它们在空中飞行
地面
树木
楼房
滑翔伞
民用无人机空中交通管理办法规定由于无人机飞行过程中无执行任务 机长为了保证飞行安全由无人机操控人员承
飞行员
机长
管制员
公司或单位
不得在无人机巡检系统飞行过程中更改巡检航线
2014年3月17日我国除雾无人机测试成功可有效清除雾霾.除雾无人机被安装在滑翔伞下面当它们在空中飞
地面
树木
楼房
滑翔伞
柴静录制的纪录片苍穹之下使人们对雾霾有了更清晰的认识.霾是指大量烟尘等微粒悬浮空中而形成的空气浑浊现
雾是液化现象引起的,液化过程中要吸收热量
霾是扩散现象引起的,是分子无规则运动的结果
汽油燃烧将内能转化成化学能,燃烧不充分排出的尾气是造成霾的原因之一
电能清洁无污染,因此电动汽车的开发利用将有效减少霾的产生
我国研制的新型消雾无人机在雾霾区域匀速水平飞行喷洒催化剂的过程中无人机的
动能减小
动能不变
重力势能不变
机械能不变
在架空输电线路无人机巡检技术中国网山东电力在2012年底成功研制出可用于 的基于毫米波雷达的安全避障
小型无人机平台
大型无人机平台
轻型无人机
微型无人机
无人机作业宜在良好天气下进行雾雪大雨大风冰雹等恶劣天气不 利于巡检作业的情况时只能短时间开展无人机巡
如图所示的小型四旋翼无人机是一种能够垂直起降的小型遥控飞行器它的质量为2kg运动过程中所受空气阻力大
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