下底板 meaning in Chinese

infrabasal
infrabasilare
lower shoe

Technology of pre - stressed bolt support for rock floor gateway in deep mine complicated conditions
深井复杂条件下底板岩巷预应力锚杆支护技术
We suggested one kind of planar metamaterials with periodic patterns tiled by two resonant components , which consist of triangular and pentagonal patch arrays and a metallic ground plate interconnected by via arrays together
摘要设计了一种由两种不同谐振单元套构而成并按周期排列组成的平面型异向性材料，该平面结构由三角形和五边型的金属贴片周期平铺构成上表面，并通过金属化导孔与下底板的金属底板连接。
Under 0 . 35um si - cmos process , considering the trade off of accuracy and speed in the adc , 2 . 5 - bit were converted in the first stage of the pipeline . using the improved calibration scheme and full difference structure and bottom - plant sampling technique to reduce the errors of the 10 - bit ( 2 . 5 + 1 . 5 5 + 3 ) , 100msample / s pipeline adc
在0 . 35 m工艺水平下,通过折衷考虑提高系统线性度和降低功耗的要求,将流水线第一级精度取为2 . 5位,采用改进的冗余位算法,并结合全差分结构,下底板采样等技术对一个( 2 . 5 + 1 . 5 5 + 3 )结构的10位100msample / s流水线adc系统进行校正。