发布时间:2025-01-24 05:49:31
这是保养摆放古琴的一个小常识。古琴为木所制,受温度湿度的影响容易有一定程度的变形,因此古琴如果长期平放的话,琴身两个雁足之间的部分会向下微微弯曲,俗称“塌腰”。出现塌腰现象的古琴由于琴面不再是平面,演奏时琴弦和琴面会产生不当的摩擦,发出噪音。塌腰古琴很难修复,所以要尽量预防,古琴不弹时最好直立挂在墙上,切勿长期平放或斜靠,这就是为什么古琴“喜立不喜卧”的原因。
请问,装饰工程公司 承接的装修装饰业务 和 采购原材料的业务 这些都不签订合同的 需要交印花税吗
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