2. Nowadays Surface Mounting Technology (SMT) and Chip on Board (COB) technology are playing more and more important role in packaging electronics productions.
表面贴装技术(SMT)和板载芯片技术(COB)在当今电子产品组装中起着越来越重要的作用。
3. A malfunction of transport of mineral elements or a disturbance of the transfer of mineral elements between
cob and kernel tissues may occure with kernel abortion.
子粒败育是由于矿质元素输送渠道的机能失常或果穗上穗轴与子粒的接合点对元素的选择输送机能失常造成的。