After setting, the surfaces of the specimens are ground down using carborundum and alumina.凝固之后, 样品表面连续用金钢砂或氧化铝磨平.The grinding block made of carborundum abrasive, is very hard and sharp.磨光机磨块采用金刚石磨料制成, 硬度极高,磨削锋利.We repai...
Amazingly, these mitochondria were once free - living bacteria that were captured by an early single - celled eukaryote.令人惊奇的是, 这些线粒体曾是被早期 单细胞 真核生物俘获的自生细菌....
miscellaneous odds and ends零碎杂物There are miscellaneous tools, pliers , putty knife, polarity stamps, battery stamping or coding equipment, lead cutters.有各种工具 、 手钳 、 油灰刀, 极性印戮 、 电他标记打印或编号机 、 铅切刀.They eat a lot of meats an...