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。
In migration processing, we usually require that migration datum is horizontal and that zero point for migration should be on the ground surface on which shot point and receiving points lie.
在作偏移处理时，一般要求偏移基准面是水平的，且偏移的零点应在激发和接收的地表。
On the equator the deflection force of earth rotation which acts on the objects in non horizontal motion is not equal to zero.
赤道上作非水平面内运动的物体所受的地转偏向力并不等于零。
The strain of the inner ends of all horizontal anchor-pipe is not zero. This has testified the presence of the reinforcement effect on composite soil-nailed support.
水平支护锚管里端部应变均非零值点，这是复合土钉支护锚固作用存在性的证明。
This dryer machine realizes zero-horizontal thrust, which greatly reduces the abrasion of the riding wheel and the catch wheel and makes the rotation of the cylinder stable and reliable.
干燥机实现了“零水平推力”，大大减少了挡托轮的磨损，筒体运转平稳可靠。
It is also found that there exists a maximum isolation period, at which, the limit ratio is zero or the horizontal displacement of the rubber bearing exceeds the allowable value.
研究还发现，存在一个最大的隔震结构周期使高宽比限值等于零或隔震层位移超过容许值。
When the speed of AUV is zero or low speed, lift is produced by the vibration of fin stabilizer at the horizontal position, which is similar to the flapping wing flight of insects and birds.
当航速为零时，则是通过鳍在水平位置附近的上下振动来产生升力，与鸟类和昆虫的扑翼飞行相似。
When the speed of AUV is zero or low speed, lift is produced by the vibration of fin stabilizer at the horizontal position, which is similar to the flapping wing flight of insects and birds.
当航速为零时，则是通过鳍在水平位置附近的上下振动来产生升力，与鸟类和昆虫的扑翼飞行相似。
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