v.想出( excogitate的过去式和过去分词 )，设计出，图谋，算计...

cogitated的音标：...

Based on the principle of full flow extinction, this paper excogitated a pocketable opacity smoke meter.基于全流消光原理, 本文研究开发了一种便携消光式烟度仪....

v.认真思考，深思熟虑( cogitate的过去式和过去分词 )...

excogitated的音标：...