词汇	研筒
释义	研筒 yán tǒng藏硯臺的器具。
随便看	second order schedule procedure second-order schedule procedure second-order schedules second order section second order segregant second-order segregant second order segregation second-order segregation second order self-adaptive secondorder sensitivity second-order sensitivity second-order sequence second order servo second-order servo second order shul instability second-order similar system second-order singular equation second order singularity second order sliding mode second-order sliding mode second order sliding mode control second-order slip flow second order soliton second-order soliton secondorder spatial coherence