- a vicious spiraln.恶性螺旋形上升， 恶性循环;
- inflationary spiraln.恶性通货膨胀，螺旋性膨胀;
- spiral wound gasket缠绕式垫片;
- spiral staircasen.螺旋梯;盘梯;
- spiral galaxyn.螺旋星云，旋涡星云;
- 双语例句
1、
The principle and device of machining logarithmic spiral profile shaft with form milling cutter are introduced.
介绍了用成形铣刀加工对数螺线型面轴的原理和装置.
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2、
Groove is a series of recessed logarithmic spiral.
槽型是一系列凹进的对数螺线.
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