单钩是书法术语,是指以食指钩笔管与拇指形成钳制状。
单钩.毛坯 英文名称: Lifting hooks for lifting appliances; Single hooks; Unmachined parts 标准组织: 【DIN】德国标准化学会 正文语种: 国标分类: 【J80】起重机械 原版报价: ICS分...
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有些水域仅可使用无倒钩的单钩。
但不变的是,柱子的侧面会依然显示清晰明确的单钩痕迹。
At the same time, the sides of the pin still show very clear and distinct picking marks.
图片所示,是一把普通的钻石形头部单钩,厚度大约在0.028英寸。
In this photo, a half-diamond fiber glass pick is shown. This pick is roughly 0.028 "thick."
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