凸模用弹性夹套固定，模具对中性好，更换凸模方便。
The punch was fixed by a spring clamp sheath, so that the die was good coaxial and convenient for exchange of the punch.
麦肯纳手中举着牌子，上面写着“60岁，需要工作，好心人请帮帮忙。” 麦肯纳因脊柱侧凸、器官狭窄遭受病痛折磨，她说运气好的话自己每天能要到7美元。
Holding a sign saying "60 years old: need a job, God and you - please help me", Christa - who suffers from scoliosis and stenosis - says she is lucky to get $7 a day.
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