| 摘要 |
The holder consists of two clamps (1), each with jaws (3) which can be adjusted by a screw (5). The clamps are joined together by flat slotted arms set at 45 degree to the lengthwise axes (C C) of the clamps by means of a bolt (10) through the slots and wingnut (11). In addition, each of the clamps can be rotated through 360 degrees about its lengthwise axis, e.g. against a graduated scale. |
