A very perfect, symmetrical diagrams, along a well defined trend channel operation, and the trading volume associated with price movements.
一张非常完美的、对称的图表，沿着一条很好限定的趋势通道运行，交易量伴随着价格的运动。
2
The paper introduced the application of BOPP film, and analyzed the market volume, prospect and pricetrend. It also described the process technology and the techno-economic evaluation.