In order to prevent stress from being set up in the metal expansion joints are fit

In order to control thermal stresses, some types of modern engines use pistons with .A.hea

Before being shut down, a diesel engine should idle a few minutes in order to ＿.A.prevent

Nothing was to prevent him now from becoming the richest, and______the happiest man in the

The criminal justice system is in need of ______reform. to prevent more people from being

The American blacks emigrate from the South to the North from 1865 to 1915 in order to ___

John Smith wants to kill the Indians in order to get the gold from the Indians.（)