TMB32型岩石掘进机后部设置了一台液压锚杆钻机,可在岩石硬度大于()的条件下钻凿锚杆孔。
查看答案
个人再交易住房贷款的贷款成数按不同房屋而有所不同,其中商业用房的贷款成数最高为()%
A. 0.8
B. 0.7
C. 0.6
D. 0.5
音频信号的带宽为15kHz,最大幅度为1V,用于调制100MHz的载波,其fk=50kHz/V,其调频带宽为()。
举例出四种石油化工测量流量计:1.()流量计;2.叶轮式流量计;3.()流量计4.()流量计。
Your vessel is at a dock taking bunkers through a pipe laid down on the dock. If oil begins to flow out of a tank vent,what should you do FIRST?()
A. Open the intake valve to an adjacent tank
B. Set out drip pans and sawdust and begin to mop up the spill
C. Signal the shore control point to shut down
D. Close the valve on the tank vent line