precursory

adj.

预备的，初步的；先兆的；

Precursory seismic quiescence
Precursory seismic quiescence: Past, present, and future
Precursory Seismic Activation and Critical-point Phenomena
Precursory Seismic Activation and Critical-point Phenomena
Precursory chemical changes in ground water: kobe earthquake, Japan
Precursory effects in the subionospheric VLF signals for the Kobe earthquake
A probabilistic synthesis of precursory phenomena
Discrete Scaling in Earthquake Precursory Phenomena: Evidence in the Kobe Earthquake, Japan
Precursory swarms of long-period events at Redoubt Volcano (1989–1990), Alaska: Their origin and use as a forecasting tool
Predicting earthquakes by analyzing accelerating precursory seismic activity