UPRIGHT METALLURGICAL MICROSCOPE

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A purely peer-to-peer version of electronic cash would allow online payments to be sent directly from one party to another without going through a financial institution.Digital signatures provide part of the solution, but the main benefits are lost if a trusted third party is still required to prevent double-spending.

The network timestamps transactions by hashing them into an ongoing chain of hash-based proof-of-work, forming a record that cannot be changed without redoing the proof-of-work.

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Specifications:

1. Wide field: WF10X/¡é18mm
Long Working Distance Plan Achromatic Objectives
PL5X/0.12/WD=18.3mm¡¢
PL10X/0.25/WD=8.9mm¡¢
PL20X/0.40/WD=8.7mm¡¢
PL50X(S) /0.65/WD=3.7mm£¬
2. Trinocular head,Compensation Inclined 30¡ãIncluding Analyzer Quintuple Nosepiece, Inner Locating on Ball Bearing
3. Stage Size£º375mm x 315mm, Moving Range£º8" x 8 ";It can be moved quickly and XY Stoppers; Changable 8" X 8"glass working stage.
4. .Vertical illuminator, 6V20W Halogen Lamp, adjustable brightness, with Polarizer
5. Packing: Inner in foam, Outer in Carton
6. Optional Accessaries: 0.4X CCD adapter