Adjustable length of bow; adapt to your personal needs.
弓长可调节；满足您的个人需要。
P For coiled prestressing tendons, after uncoiling a length of wire or strand the maximum bow height shall comply with en 10138 unless given in an appropriate European Technical Approval.
对于卷曲预应力钢，在展开一段钢丝或钢绞线之后，除非在相应的欧洲技术认可有规定，否则其最大船首高度必须符合EN 10138规定。
Next, the sinew is laboriously prepared, providing strands of ideal length to cover the back of the bow.
其次，腱子是艰苦准备，提供理想的长链，以支付背面的弓。
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