He showed me a machine whose parts are too small to be seen.
他给我展示了一种机器，它的部件都小得无法看到。
Modular machine, by the large number of common parts and a small number of specialized components of the process focused efficient machine.
组合机床，是由大量的通用部件和少量专用部件组成的工序集中的高效率机床。
The machine is characterized by broken than large, particle size is small, the impact of wear and tear parts are not vulnerable, broken and stable quality.
本机的特点是破碎比大，粒度小，不受易损件的磨损影响，破碎质量稳定。
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