为了加强弓的远射力量,至晚从战国时期起,中原皆采用复合弓体。复合弓用多层木片叠合,在弓把处特别加短竹木片增加强度。复合弓需要用胶黏合,用丝织品、丝绳等紧缠,再用漆封闭。弓体在强力的运动中,很容易使得复合体发生损坏,这就产生伤(弓無)与伤渊问题。(弓無)或叫弣,本是弓把处附着的木条,因所处的位置也把它作为弓把的名称。 In order to strengthen the long-range bow strength, late from the Warring States Period, the Central Plains are used composite bow body. Composite bow with multi-layer laminated wood, especially in the bow Department of short bamboo wood to increase strength. Composite bow need to use glue, with silk, rope and other tightly wrapped, and then closed with paint. Bow in the powerful exercise, it is easy to make the complex damage occurred, which resulted in injuries (bow no) and injury Yuan Yuan. (No bow) or 弣, this is the bow attached to the wood, because it is also used as the bow name.