在压力不变的条件下,水力旋流器溢流管直径增大,则溢流量(),生产能力(),溢流粒度变()。
A.增大、增大、细
B.减小、减小、粗
C.增大、增大、粗
D.减小、减小、细
参考答案:C
When the teacher came into the classroom, the students stopped _____. [ ]
A. talking
B. talk
C. to talk
D. talked
零件图中的尺寸标注要求是完整、正确、清晰、合理。()