A、A.increases the strength of the hook
B、B.prevents the sling ring from coming out of the hook if the strain is abruptly eased
C、C.prevents the sling ring from coming out of the hook if there is a strain on the sling ring
D、D.All of the above
更多“The latch of a safety hook（）.”相关的问题
A、The size of the shared pool is too small. B、Cursors are not being shared. C、A large number COMMITS are being performed. D、There are frequent logons and logoffs. E、The buffers are being read into the buffer cache, but some other session is changing the buffers.
A、衬底耦合噪声是造成Latch up问题的原因之一。 B、Latch up效应在电路上可以解释为CMOS集成电路中寄生三极管构成的正反馈电路。 C、Latch up效应与两个寄生三极管的放大系数有关。 D、Latch up效应与井和衬底的参杂浓度无关。
A、the raising of the standards of teaching and the reform in curriculum B、the raising of the standards of teaching and learning and the restructuring of the schools C、the raising of the standards of teaching and the improvement of the standards of learning D、None of the above
A、volume of liquid in the tank B、volume of displacement of the vessel C、location of the tank in the vessel D、height of the center of gravity of the vessel
A、centerline of the pump and the level of the liquid in the suction well when the source of liquid is below the pump B、centerline of the pump and the suction liquid level when the source of liquid is above the pump C、centerline of the pump and the level of the discharge liquid D、liquid levels of the suction and discharge
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