First, let's look at the Sell Side Indicator, which has been our most-reliable market-timing barometer (see following chart).
首先，让我们看看买方指标，该指标一直是我们最可靠的市场时序晴雨表(参看下图)。
2
The machine body is also provided with a negative iron output hole, a timing switch, a power supply indicator light, a wind inlet, and a power supply line, etc.