Ledger lines or leger lines are short horizontal lines used to indicate notes that lie above or below the stave. 加线为较短的水平线,用以表明音调在五线谱之上或之下。
The basic logogram usually represents the species of the animal, whereas two short horizontal lines denotes the male of the species, and an extra vertical line denotes the female. 在一个表示一种动物的符号上加上两条短的横线表示雄性,加上一条竖线则表示雌性。
This article deals with the methods and controls to solve the " bottle - neck " problem successfully in the shield construction, which are appied to transfer traversing at big vertical angle and short horizontal distance in the end - well of subway station. 本文介绍了在盾构施工中,分两阶段进行端头井导线测量垂直传递的方法和控制手段,成功解决了大竖角短边导线垂直传递的瓶颈问题。
Combining the discharge theory of long gap, the operation experience and the result of simulation test, when the length of the short horizontal side needle is 20 cm or above in operation, the protection zone is about 6 m. 根据长间隙放电理论、现场运行经验和模拟试验结果提出实际线路加装长度20cm或稍长的侧针,保护范围约6m。
Residual Collapsing Strength Analysis of Bending Part Casing in Medium / Short Radius Horizontal Wells 中短半径水平井弯曲段套管剩余抗挤强度分析