The bed-plate is secured in the longitudinal direction by means of bolts known as （）.
举一反三
- The force on the metal plate of parallel plate capacitor is A: longitudinal tension B: lateral pressure C: unable to confirm D: zero
- The shells are secured by means of bearing caps and studs， the necessary clearance being provided by means of （） of different thickness.
- A main bearing consists of two shells which are secured by means of studs and （）.
- The position of the piston parts in relation to each other is secured by means of （） in the crown.
- An instrument that indicates wind direction is known as a(n)（）.