地震的全局阵列记录用于深度相的识别和建模，可精确估计震源深度。
Records of earthquakes at global arrays have been used for identification and modelling of depth phases in order to make accurate estimation of focal depths.
结果表明，用这些震相测定地震震源深度，提高了台站测定远震震源参数的精度。
It is indicated that the precision of depth determined by this station is improved for the distant earthquakes if this approach is used.
为发电机的安全可靠运行提供依据，使发电机处于最佳进相深度下运行，确保系统电能质量。
It provides a reference for generator's safe and reliable operation, and makes generator operation under the optimal phase depth, also insures system's electric energy quality.
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