zero horizontal drift 零水平漂移
horizontal zero 水平零位
horizontal deflection zero setting rod 水平偏转零位调整杆
To avoid any division by zero or overflow, transform all division into multiplication and check for the sign (horizontal lines with Y2=Y1 do not count in the algorithm)
要避免任何数与 0 相除或溢出，将所有除法转换为乘法并检查运算符号（Y2=Y1 的水平线不会计入算法）
The method for computing the zero-offset VSP forward model in the case of horizontal beds is given.
本文给出一种地层为水平层状情况下，零偏移距的VSP 正演模型计算方法。
The living rooms are located on ground zero, the bedrooms are lifted and provided with horizontal orientated windows.
起居室位于地面为零标高，卧室被抬高并设置了一个横向的长条窗。
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