LCA bonding glycosylated proteins and sialic acid protein were fractioned and purified by this method from various biological samples, and were analyzed by 2D technology preliminarily.
方法:以环氧磁粒为载体固定小扁豆凝集素LCA及麦胚凝集素WGA,对二者固定化及分离提取糖蛋白的条件进行优化。
We proposed the themethod which changing small flat drill bit,drilling the center bore,improving edge shape,selecting appropriate cutting speed and enters for the quantity and so on.
针对小直径深孔加工时常见的棘手现象,通过对切削速度、切削力和走刀量等因素的分析,结合生产实际,提出了改制小扁钻头、预钻中心孔、改善刃形、选取合适的切削速度和走刀量等方法,以解决小直径深孔加工困难的问题。
