The present invention provides the use of impact resistant, stress cracking resistant copolycarbonates with particularly good low temperature properties for applications in which particularly good low temperature properties are required, e. In accordance with one aspect of the present invention, rolled resorbable membranes are applied to the transverse processes of two or more vertebrae to facilitate fusion of the vertebrae. The dimensions are such that the consumer can use two or three fingers to operate the trigger. The plurality of rotating gear members are disposed within the opening of the wear component. Through the present invention, the dopants in the Halo ion-implanted region improperly introduced to the source region and the drain region may be reduced, and then the overlap between the Halo ion-implantation region and the dopant region of the sourcedrain regions may be reduced, thus to reduce the band-band leakage current in the MOSFET, and hence improve the performance of the device. The image reading apparatus includes an illuminating unit for illuminating image information of the original placed on an original support, and an image forming unit for imaging the image information on a reading unit.