The influence of cut shape on cut Angle, cut height and collapsing rule is analyzed, and the mathematical models to determine cut Angle, cut height and collapsing rule are established.
分析切口形状对烟囱的爆破切口角度、切口高度及倾倒规律的影响，建立砖烟囱和钢筋混凝土烟囱选择不同切口形状时的爆破切口角度、爆破切口高度和倾倒规律的数学模型。
Measure, cut, shape, assemble and join materials made of wood, wood substitutes, lightweight steel and other materials.
测量，切割，造型，组装，连接木材，木材的替代品，轻钢结构及其他材料制成的物品。
Operate woodworking machines, such as power saws, jointers, mortisers and shapers, and use hand tools to cut, shape and form parts and components.
操作木工机器，例如电锯，开槽机，榫眼机和牛头刨床，并使用手工具切割，塑造和成型零部件。
Operate machines or equipment or use hand tools to cut, shape, splice, fit and cement rubber materials to form rubber parts or finished rubber products.
操作机器或设备，或使用手工具切割，塑型，拼接，配合和接合橡胶材料，形成橡胶件或成品橡胶制品。
Operate machines or equipment or use hand tools to cut, shape, splice, fit and cement rubber materials to form rubber parts or finished rubber products.
操作机器或设备，或使用手工具切割，塑型，拼接，配合和接合橡胶材料，形成橡胶件或成品橡胶制品。
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