一问题的提出我所于1980年购进一台江南光学仪器厂首批试制的XDT—10型透射电子显微镜,在使用中经常出现样品室样品移动台移动不灵活,导致可选择视场范围极小。以φ3mm、200目载物铜网为例,视场选择范围仅有3～5个铜网孔,此刻,就必须把整个精密复杂的样品室卸下清洗,清洗后视场可选择范围虽有所好转,但 A question put forward in 1980 I purchased a Jiangnan Optical Instrument Factory trial of the first batch of XDT-10 transmission electron microscope, the sample chamber often used in the mobile station mobile sample is not flexible, resulting in a selectable range of field of view electrode small. To φ3mm, 200 mesh copper network as an example, the field of view selection of only 3 to 5 copper mesh, at the moment, it is necessary to remove the entire sophisticated sample chamber cleaning, cleaning field of view optional range though The improvement, however