单圈弹簧管式压力表,通过改变拉杆与扇形齿轮连接处调整螺钉的位置,可改变仪表机械传动的(),从而实现压力表的量程调整。
A、位置
B、速度
C、位移关系
D、放大系数
参考答案:D
对无牙颌病人,若上、下颌骨关系正常,则上、下牙槽嵴的连线与平面的交角()
A.>60°
B.<60°
C.>80°
D.<80°
E.=70°
The board of the company has decided to ______ its operation to include all aspects of the clothing business.
A. extend B. enlarge C. expand D. amplify