转轮直径为6000mm的立式轴流转桨式水轮机转轮耐压和动作试验时,各组合缝不应有渗漏,每个桨叶密封装置的16h的漏油量不应超过()mL
A.5
B.7
C.10
D.12
参考答案:B
A sense of ______ is the basic requirement for people working in the service industry, such as
education and health care. [ ]
A. agreement
B. attention
C. carefulness
D. devotion
布线电缆应满足()等指标的要求,并应有足够的机械强度.
A.传输速率
B.允许衰减
C.特性阻抗
D.串音防卫度
E.耐压