削除
3.Younger brothers are commonly fortunate, but seldom or never where the elder are disinherited.
4.However, Demesetz holds, the direct regulation will be unnecessary if franchise bidding is introduced in public utilities. Through competition for the market, the most efficient company will automatically win the franchise and its monopolistic profit will be eliminated.
5.The effects of grit sizes of wheel, wheel speed, contact force, wheel sharpening and coolant on the removal rate of PCD material are studied In conclusion, it suggested that the removal of PCD material is caused by mechanical force and the removal rate is higher as the effective grinding power is higher during grinding cutting tools
6.With the grinding going on,electroplated bond was gradually worn out,and color of glass swarf changed from white to black.
7.1TC series boring and facing head is based on 1TA series boring head with special cutter disc and cutter driving devicees,it not only functions of 1TA series boring head,but also can complete endface,external,splling and corner cutting.
8.The mechanisms could be classified as sublimation , melt , thermal spalling , detachment of grains , vaporization , and spalling of grains adhered to the surface by resolidified phase .

