paypal donate button for profit But let's remember that the increased participants were basically in the interest of the economy and were attracted to new tokens that they felt were promising. 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. At the time of. The shape of the car was similar to that of the "sedan" in ancient China, and was as glorious as the car. The car was then called a car. First car, its body modelling is basically used for the carriage, in the form of so called "horseless carriage" English name Sedan is refers to the European noble a luxury passenger carriage, decoration not only pay attention to, and it is enclosed, wind, rain and dust, and to improve the degree of safety. When it was introduced to the United States in the 18th century, it was only possible for rich people in a few big cities such as New York and Philadelphia to enjoy it. When ford introduced the model T model in 1908, the body was changed from open to closed, and its comfort and safety improved greatly. Ford referred to his "Closedcar" as Sedan. The famous ford model T is the best car in the world. The car engine is in the design phase, and the fuel used for the compression ratio is set. The compression ratio is a very important structural parameter of the engine, which indicates the volume of the gas at the beginning of the piston at the beginning of compression and the volume ratio of the gas volume at the end of the piston. In terms of power and economy, compression ratio should be bigger and better. The compression ratio is high, the power is good, the heat efficiency is high, the vehicle acceleration, the top speed of the car will be improved accordingly. However, the compression ratio of the gasoline engine is not too large due to the performance of the cylinder material and the vibration of gasoline combustion. In short, a high compression ratio USES a high grade fuel oil. The higher the fuel mark, the slower the oil will burn, and the lower the combustion detonation, the higher the compression ratio of the engine. On the contrary, the low-grade fuel combustion rate is faster, the combustion explosion is large, the engine compression is lower.