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一、日本津上制造的12块组角度块的功能与不足之处一组角度块虽然只有十来块,但它们可以单独使用或合理组合以得到给定范围内的一系列角度。日本津上制造的12块组角度块,其工作角公称值为1′、2′、3′、9′、25′、50′、1°、3°、9°、14°、30°和45°。我们可用它们(每次组合块数不超过八块) 来得到组合范围0～102°内间隔为1′的6120个角度。其不足之处为不少角度要用七八块角度块才能组成。二、10块组角度块及其功能作者针对上述角度块的不足之处,设计出
First, the Tsuyoshi, Japan made 12 sets of angle block function and shortcomings A group of angle blocks, although only ten blocks, but they can be used alone or in a reasonable combination to get a range of angles within a given range. Japan’s Tsukushi manufacture of 12 groups of angle block, the working angle of the nominal values of 1 ’, 2’, 3 ’, 9’, 25 ’, 50’, 1 °, 3 °, 9 °, 14 °, 30 ° and 45 °. We can use them (no more than eight for each combination) to get 6,120 angles in the range of 0 ~ 102 ° with an interval of 1 ’. Its inadequacies for many perspectives to use seven or eight angle block can be composed. Second, the block angle block 10 and its function The author aimed at the shortcomings of the above angle block, designed