floor sill

基本解釋

Study on hydraulic characteristics of transverse vortex behind sill of energy dissipator with step-down floor;
對比常規(guī)的底流消能工，對跌坎式底流消能工消能水力特性進(jìn)行了分析和試驗(yàn)研究。
With rear seats that fold down flat to the floor and a hatchback with a low sill height, the Fit can have an enormous and easily accessible cargo hold.
飛度的后排座椅可以將靠背折疊放平，掀背式的后門加上很低的門檻使得飛度有一個非常人性并且易于存放的行李空間。
laoguoweixiu.blog.163.com
He saw also what had made the crash: a costly porcelain vase which had been standing on the window-sill lay on -the floor broken into about thirty pieces.
他也弄明白了是什么弄出啪啦聲來的：原來放在窗臺上的一個珍貴瓷瓶，在地板上碎成了三十片光景。