Unwilling to be caught up in the ancient astronaut craze , anthropologists have suggested that the tassili " roundheads " are merely ceremonial dancers or priests wearing empty gourds over their heads 由于不愿意染上古代宇航员的狂热,人类学家暗示泰斯利的“圆头人”仅仅是仪式上的舞蹈,或者是祭司把空葫芦戴在头上。
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The modern xylophone is also equipped with perpendicular resonators underneath the bars . the playing technique is similar to that of the glockenspiel , with roundhead mallets made in various degrees of hardness and resilience 它们像钢琴的黑白琴键那样排成两行,在每块木片下,装有开口的金属共鸣器,藉以增强声音的回响,使音量更大。