These bands provide resistance points for up trends and support for downtrends.
这些带给上升趋势带来了阻力点，并为下降趋势提供了支撑。
2
Rules for Shorts in Downtrends When the trend is down, we calculate SafeZone on the basis of the highs because their pattern determines stop placement.
下跌时做空的原则当趋势下跌时，我们根据最高价计算安全区域，因为它们的模式决定了止损位置。
3
Double bottoms draw their predictive power from the trends that precede them. As a series of lower lows print on a bar chart, downtrends often accelerate.