一般,剪切角增加,则()。
A.切屑变形程度减小
B.切削力变小
C.切削变形系数变大
D.切屑底层与前刀面的摩擦加剧
参考答案:A, B
简要说明电子血细胞计数仪的评价方法。
While it is essential that the text covers the subject adequately, it is also important that it is neither too detailed or too complex for the intended reader.
A.for
B.nor
C.no
D.not