oil immersion lens The market has its origins in ancient times when people used the term of place to trade in fixed time or place. In the present, the market has two meanings, one is the trading place, such as traditional market, stock market, futures market, etc., another meaning is the general term of trading activity. The word "market" refers not only to a trading venue but also to all transactions. So when it comes to market hours, it's not just about the size of the site, it's about whether the consumer activity is active. In a broad sense, all property rights transfer and exchange relationships can be market. The new Surface Pro(2017) accounts for 9.2%, roughly the total of the Surface Book(7.5%) and the Surface Laptop (2.0%). Medium small Springall said: "this will be a long time before fully recover energy saving market also so if savers, waiting for a long time, they may eventually in some we saw in more than a year the most preferential price missed." Based on the above two kinds of comparison and analysis of the concept of earnings, reveals the inadequacy of accounting earnings, i.e., the accounting income does not take into account inflation, the production gains, goodwill to improve the impact of changes and their value, and can be found on only the pursuit of reliability, and can be measured, which affect the enterprise's profit ability and continuous operation ability. Accounting, since the 1950 s began to pay attention to absorb the income concept of some reasonable kernel of economics, the concept of modern accounting theory of income in the income concept of economics. ? Social Value: The social net profit of your organisation is understood to be the economical value made for the society. It measures the positive ramifications from the business on its human capital. Healthy labour practices, corporate community development and workplace behaviour are some from the key metrics towards measuring the social value of your organisation. This approach seeks to align the business interests while using labour interests within the organisation.The social sustainability approach seeks to develop and nurture sustainable relationships from the external and internal community.