adj.先驱的；前兆的；作预备的
A precursory plan is brought forward in the end of the article. 形成与其地位和形式相匹配的新格局的规划思想，并提出规划建设的意向性方案。
A precursory new species of genus Celastrus in China. 我国南蛇藤属一个新种的预报.
CONTINENTAL MANTLE METASOMATISM:A PRECURSORY EVENT OF PLATFORM ACTIVATION? 大陆地幔交代作用:地台活化的先驱事件?
Results All of the 34 patients have precursory symptoms of peroileus. 结果34例患者均有不同程度的不全性肠梗阻的先兆症状；
STUDY ON SOME SPECIAL ASEISMIC PRECURSORY ANOMALIES OBSERVED FROM SHAANXI SEISMIC NETWORK AND THEIR CAUSES? 陕西几例特殊的无震异常及其成因分析?
Stress concentrations in the tips of randomly distributed cracks around the inclusion lead to the precursory seismicity pattern. 它们是形成小震空区、条带和地震空间丛集图像的基础。
