adj.前兆的；预告的
What premonitory signs and symptoms may exist for asoagal syncope? 血管迷走神经性晕厥出现的先兆症状和体征有哪些?
What premonitory signs and symptoms may exist for vasovagal syncope? 1. 血管迷走神经性晕厥的危险因素有哪些？
The work presents some data on the premonitory phenomena of earth-quakes. 为寻找前兆现象提供一点资料。
After close observation for premonitory indications, the danger ares is narrowed down, and the approximate scale and time of accurrence determined. 在对预兆进行细心观察之后就把危险区缩小，并确定出地震发生的大概震级和时间。
Some patients develop premonitory signs and symptoms, such as nervousness, sweating, and tachycardia. 病人可有先兆性症状，例如易于激动，出汗和心动过速。
