| 摘要 |
FIELD: office machinery, in particular, equipment for sonication of rooms of various sizes and areas. ^ SUBSTANCE: lecture rostrum is made in the form of column fixed on base and covered with table top. Column is made in the form of many-sided prism, whose sides are rigidly bound in ribs, said column constituting polygon in horizontal section. One of column sides defines detachable rear wall connected with front sides or with lateral sides. Dynamic loudspeakers are mounted on front sides. Rostrum comprises acoustic frequency power amplifier, control panel mounted on table top, wire microphone and radio microphone. Table top is equipped with illumination lamp. Rostrum is switched on through mains cord. ^ EFFECT: wider functional and didactic capabilities. ^ 10 dwg |
