If the discharge in the transaction, it may be a static ink spot on the printed matter, this situation often appear in thin printing levels.
假如是在异动中放电，就可能在印品上出现“静电墨斑”，在层次的薄版印刷中常出现这种状况。
On the other hand under the quantity coordination, may affect the oil quality in the spot transaction foundation the price, thus holds the small space in the world oil quality market.
另一方面在量的配合下，可以在现货交易的基础上影响油品的价格，从而在世界油品市场上占有一席之地。
应用推荐