The equipment is welded by thicken material .Break rigid material ia hight efficiency ,indeformable ,little moise .The dynamic nose of tool is knocked-down .It is easy to rubbing when it is dull.
Thrombin then turns factor I or fibrinogen, which is soluble, into factor Ia or fibrin, which is insoluble and precipitates out of the blood at the site of injury.
They come in several types (one of them discovered by Evans) and of these one in particular, known as a Ia supernova, is important to astronomy because it always explodes in the same way, with the same critical mass.
作 王 。
过 犯 受 害 ， 为 
。
， 
随便的
种超新星，
到背景
关门的声音。
