The bump stores great pressure. The machine tool can be operated with multi house and gunstock.帮浦蓄压大,母机可作多组胶管与枪体操作....

gunstock的音标：gunstock的英式发音音标为：['gʌnstɒk]gunstock的美式发音音标为：['gʌnˌstɒk]...

n.枪托...