trigger n. (枪上的)扳机;【机械工程】扳柄;闸柄;制轮(机),制滑器;【物理学】触发器,引爆器;【化学】(连锁反应)引起物;〔转〕触发物;【电学】起动线路;起动装置。 pull [press] the trigger 扳扳机,射击。 quick on the trigger 打得快的;〔口语〕动不动就开枪的;敏速的;〔美俚〕性急的;三心两意的。 vt. 扳动扳机射击;触发,激起 (off)。 vi. 松开扳柄。
During this process the south hemisphere cross-equatorial flow over the indian ocean plays a triggering role 在这次过程中,印度洋南半球越赤道气流起了激发的作用。
Water acts as triggering roles in ris, and the roles include several respects as follows : ( 1 ) change the stability of faults 在水库诱发地震中,水体只起到触发作用,其诱发作用体现在几个方面:(1)改变库区断层的稳定性。
Through analysis of potential vorticity in isobaric surface field, in low-troposphere a positive potential vorticity disturbance exist and form incline disturbance column northward before rainstorm generation, at the same time have also reflected positive potential vorticity disturbance for severe convection weather trigger role in lower-troposphere; soon positive potential vorticity disturbance in high-troposphere downward, form one vertical disturbance column, now corresponding precipitation develop stage; in the prosperous stage of rainstorm that maintains isolines of horizontal distribution and still have straight positive potential vorticity disturbance in 600-700 hpa isobaric surface field; when near ground arises negative potential vorticity disturbance, precipitation also weaken 通过对等压面的位涡分析,发现了在暴雨发生前,在对流层低层有正位涡扰动存在并向北形成倾斜的扰动柱,同时也反映了对流层低层正位涡扰动对强对流天气的触发作用;随后高层正位涡向下扰动,形成一个垂直扰动柱,这时对应降水的发展阶段:在暴雨的鼎盛阶段,600700hpa上空维持水平分布的等值线,在其上还有正的位涡扰动;当近地面出现负的位涡扰动时,降水随之也减弱。