surface medium meaning in English

表面培养基

2 ) forward modeling method of refraction first - break in lateral varying velocity media . for layered media , a new forward modeling method of refraction is presented . for more complex near - surface conditions such as mountain areas , a new improved ray tracing method based on shortest path assumption is studied , it has higher accuracy and faster computing efficiency than conventional ones . the method can be used for the forward modeling of complex near - surface media
而对于折射面起伏较大、低速层和折射层速度变化较大的复杂近地表情况，提出了一种改进的最短路径初至波射线追踪方法，该方法精度高，计算速度快，适用于任意二维复杂近地表介质(如山地)的初至折射波的正演计算。
Spr is a physical phenomenon of total intemal reflection ( tir ) of light at the interface between two media when a light beam propagates across such an interface from higher refractive index media to the lower . spr is sensitive to the refractive index of the surface medium . the physical characteristic of spr has been applied to chemo / biosensing in the chemistry and biology
Spr原本是一种物理光学现象，由沿着金属和介质界面传播的电磁波所激发而形成的，它对于附着在金属表面的介质的折射率非常敏感，化学与生物学上利用spr的这个物理特性来进行传感分析。