| 摘要 |
FIELD: physical or chemical processes or apparatus. ^ SUBSTANCE: device comprises housing provided with the top surface, first opening having top edge formed by the top surface of the housing, bottom part for receiving porous frit and tissue, collar that projects into the bottom part of the first opening and made for holding the frit, and second opening provided with the top edge defined by the top surface of the housing and bottom part defined by the bottom part of the housing. ^ EFFECT: expanded functional capabilities. ^ 41 cl, 6 dwg |
