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

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___________.

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

are very soft ,and can be used for bolts and for machine parts that do not need strength.: Alloy steels|High carbon steels|Low carbon steels|Medium carbon steels

The saying, "Laziness is like a lock, which bolts you out of the storehouse of information…", is said by___________. A: Bernard Shaw B: Benjamin Stein C: Russell Baker D: Diane Husker

I don't want to ( ) our competitor by lowering our price. A: get graded B: go head to head against C: nuts and bolts D: come out on top