将螺栓安装在正确的位置。 A: Install the bolts in the correct positions. B: Install the bolts in respective positions. C: Install the bolts in successful positions.

逐渐拧紧螺栓。 A: Torque the bolts gradually. B: Apply progressive torque to the nut. C: Torque bolts progressively.

The correct tightening is obtained by use of （） to measure the extension given to the bolts.

The bed-plate is secured in the longitudinal direction by means of bolts known as （）.

Attach the track to the channels with the ____. A: Attach the track to the channels with the bolts. B: Bolt track to channels.

When the length changes of bolts are caused by_________, the lock washer is not effective.

The saying, "Laziness is like a lock, which bolts you out of the storehouse of information…", is said by___________.

The correct tightening is obtained by use of （） to measure the extension given to the bolts. A: pressure gauges B: stretch gauges C: thermometers D: bridge gauge

Nuts, bolts, and screws are undoubtedly the most common means of _________. Since they are so widely used, it is essential that ____________attain ____________at the ___________cost.

The heads of the bolts must not be more than 5 mm the plate. A: above (prep.) B: over (prep.) C: protrude (v.) D: jut out