Packaging of winding wires. Part 3: taper barrelled delivery spools. Section 3: specification for non - returnable spools made from thermoplastic material.
绕组线的封装。第3部分：锥形筒式输出线轴。第3节：由热塑性材料制成的不能回收使用的绕线轴规范。
Packaging of winding wires. Part 2: cylindrical barreled delivery spools. Section 2: specification for returnable spools made from thermoplastic material.
绕组线的封装。第2部分：圆桶形输出线轴。第2节：由热塑性材料制成的可回收使用的绕线轴规范。
Sometimes it comes up against a narrow section flanked by high mountains and steep cliffs, winding through a course with many a perilous twist and turn.
有时流到很逼狭的境界，两岸丛山叠岭，绝壁断崖，江河流于其间，曲折回环，极其险峻。民族生命的进展，其经历亦复如是。
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