搜索
| A．划线→锯割→锉削→钻孔→攻丝→倒角→淬火→电镀 |
| B．划线→锯割→锉削→钻孔→倒角→攻丝→电镀→淬火 |
| C．划线→钻孔→锯割→锉削→倒角→攻丝→电镀→淬火 |
| D．划线→锯割→锉削→钻孔→倒角→攻丝→淬火→电镀 |
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
