取样 (a) Microtomy: e Useful for preparing soft materials such as polymer samples. 。 Steel,glass or diamond knives in a microtome can Specimen Specimen holder block Block Specimen cut samples into very thin Knife sections. Knife Cut section Sections (b) (a)Adapted from http://www.me.ust.hk/-meiswu/. Copper Microscope slide (b)From http://blass.com.au/definitions/microtome mesh grid 10取样 10