zmax oil treatment (2) special transport vehicles for transport China's understanding of the market is mainly based on mechanical reference to western economic theory, but it ignores their assumptions and implicit assumptions. China's so-called mainstream economists' understanding of the market is more of a new classic. In other words, the market is an efficient allocation of social resources pricing mechanism. Although China has introduced new institutional economics, it has not read the meaning of "property rights", and mechanically believes that property rights are based on "stock of property". "Task list including trade agreement with the European Union, and about 60 countries negotiate a new agreement, by replacing Britain's current political party, joining the European Union to strengthen the human and the customs and other services IT resources, and translate thousands of eu law into domestic laws and regulations. " With the development of productivity and social progress, the enterprise form has been continuously developed and improved. The evolution of an enterprise mainly goes through three stages Mooney and si prowse in its around the main accounting principles for enterprises ", not only emphasize to determine profits in a timely manner, and emphasizes the necessary through division operating earnings, the gains and the impact of price changes, to improve the comparability of financial statements and understandability. Followed by Edwards and bear published in his 1961 book "the theory of corporate earnings and measurement of the current operating profit is defined as the sales revenue more than the amount of current production and cost of sales, which can realize the cost savings is in this issue of asset price increases, which can realize the history of the cost savings are the pin commodity costs and the difference between the current purchase price; The realized capital gains are the amount of sales revenue greater than the historical cost when dealing with long-term assets. They argue that "these incremental sums provide investors with a reasonable starting point for measuring the scale of relative affluence and a detailed analysis of the company's operating results and comparable financial conditions". They stress that any full income analysis should take into account both realized and unrealized benefits and classify them by source. When are advantageous to occur, such as no record, will not only lead to current income can't reflect, but also can lead to later to sell assets to income and related costs to wrong ratio; Operating earnings and, on the other hand, the production gains is usually produced by different management decisions, and adopted different circulation form, therefore, make the same comment on both, will weaken the role of the income statement.