Depression is often caused by a combination of factors, so what is known as a "downward spiral" effect often occurs.
造成抑郁的因素往往是综合的，所以是“螺旋式下降”。
2
This method is utilised to great effect in the design of our Genesis Silver Spiral loudspeaker cables.
这种方法是利用去很大的影响，在设计我们的成因银螺旋扬声器电缆。
3
The transepicondylar axis of different position has no effect on volume rendering technique measuring the humeral head retroversion angle with multi slice spiral CT.