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- caving unit distance 步距
- The seismicity levels on the active tectonic block boundaries are discussed considering the large earthquake frequency and the released strain energy in unit distance and time. 从各边界带上强震活动的频次和单位时间、单位长度的地震应变能释放出发，讨论了各活动地块边界带的强震总体活动水平；
- Using the single mass-spring model,we study the gaits of a hopping robot for the purpose of minimizing the loss of energy per unit distance covered and present our expressions of energy consumption. 基于单质量-弹簧模型,研究了能够使弹跳机器人单位距离能量损失最小的步态,给出了能量的消耗表达式。
- The minimum sample frequency that allows reconstruction of the original signal, that is 2W samples per unit distance, is known as the , (or Nyquist rate).The time inbetween samples is called the . 如果采样的频率低于这个界限，原信号中频率高于采样频率1/2的频率将会发生“混叠失真”，并在采样得到的信号中以相对低的频率出现。
- The Ordovician reservoir may not be distributed as a whole-block, but distributed as different-sized fissure and cave units in overlapped spaces. 奥陶系油藏可能不是整体连片分布，而是不同规模缝洞单元的空间叠合分布。
- Reflected binary unit distance code 反射二进制单位间距码
- light-time for astronomical unit distance 天文单位距离的光行时
- cyclic permuted code (CP code) unit distance code 单位距离码
- cyclic permuted code CP code unit distance code 单位距离码
- cyclic binary unit distance code 循环二进单位距离码
- cyclic permuted code ( CP code ) unit distance code 单位距离码
- A hermit used to live in the cave. 一位隐士曾经住在那个山洞里。
- We kindled a firebrand in the cave. 我们在山洞里点燃火把。
- A mouse ran out from the dark orifice of the cave. 一只老鼠从黑暗的洞口跑出。
- Seen from within, the cave looked larger. 从内部看，那个地洞显得更大。
- The dark, dank cave gave me the willies. 这阴暗潮湿的山洞使我感到心惊肉跳。
- The luminous intensity on unit area. 单位面积上的发光强度。
- There is a bear in the inmost recesses of the cave. 洞穴的最深处有只狗熊。
- Where's the entrance to the cave? 这个洞穴的入口在哪里?
- A massive boulder blocked the entrance of the cave. 一块巨大的圆石堵住了山洞的入口。
