Before reassembling any machinery, you should _____.A.replace all bearings regardless of l

Before using or operating any equipment, you should first _____ its manual thoroughly and understand its contents_____.

When under maneouvring conditions with the machinery being manually operated the control u

We should see the events in their historical ________ before we draw any conclusion.A

The machinery outside the calorimeters records ev

Modern machinery（)been installed in this newly b

A．Because he believes new kinds of machinery will