问题:红外光电测距仪主要是由光学系统、电子系统和电源三部分组成。()
Friday, September 27, 2024
问题:规范规定线形锁重合点和测角交会点两组坐标较差不应大于()。A、M/3000B、M/5000C、M/10000
Sunday, June 16, 2024
问题:J2型经纬仪的2是指该仪器测水平角的测角中误差为2″。()
Friday, June 28, 2024
Friday, June 28, 2024
Monday, August 5, 2024
Friday, September 27, 2024
Friday, July 12, 2024
Tuesday, July 30, 2024
Tuesday, July 30, 2024
Friday, July 12, 2024
Tuesday, July 30, 2024
Friday, September 27, 2024
Saturday, June 1, 2024
问题:矿井瓦斯等级,是根据矿井()划分的。A、相对瓦斯涌出量B、相对瓦斯涌出量和瓦斯涌出形式C、绝对瓦斯涌出量D、相对瓦斯涌出量、绝对瓦斯涌出量和瓦斯涌出形式
Tuesday, July 30, 2024
Sunday, June 30, 2024
问题:用双面标尺进行水准测量,前后视高差很小,在计算高差时,应以()符号为准。
Friday, September 27, 2024
Friday, July 12, 2024
Friday, July 12, 2024
问题:当用DJ2经纬仪进行10″小三角测量时,其测回数为()测回。A、1B、2C、3
Friday, September 27, 2024
问题:四等水准测量红黑读数差应小于(),红黑高差之差应小于()。
Sunday, June 16, 2024