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You should _______________ to one or more weekly magazines such as Time or Newsweek.
用于工程测量的电磁波测距仪,以其测量原理采用( )测距的测距仪.共测比精度最高。

You can _____ some bottles of wine, or some chocolates, or a bunch of flowers.

A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.

Tables______ of stones or wood.
_________ in a person’s speech or writing usually ranges on a continuum from casual or colloquial to formal or polite according to the type of communicative situation.
光电测距仪采用多个频率组合测距, 以解决 ___________ 和 ____________ 的矛盾
All people, whether they be rich or poor, strong or weak, privileged or deprived,are interdependent, and _______ the common task of seeking to achieve mankinds full potential
- What does the sign over there read - “No person ________ smoke or carry a lighted cigarette, cigar or pipe in this area”
1_____education is the instruction that occurs when the instructor and students are separated by distance or time,or both
光电测距仪误差表达式为mD=±(a+bD),其中a称为___误差,bD称为___误差。
在进行地面控制测量时,选择光电测距边有什么要求?
对于地形测量和各种工程测量,常用的红外测距仪属于()。
距离测量的常用方法可分为钢尺量距、光电测距、视距测量及()。
导线边长可用光电测距仪测定,规范对中、短程测距仪进行了划分,短程为3km以下,中程为()
目前广泛采用的光电测距仪周期误差测定的方法是()。
光电测距仪中,测程小于()km为短边测距仪。
光电测距仪按照测量时间的方式可以分为相位式测距仪和()。
光电测距仪按照测量时间的方式可以分为()和脉冲式测距仪。
光电测距仪或激光测距仪的机械对中点与光路棱镜()反射面不一致所引起的距离改正称为测距仪测距加常数改正。
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