There are many elements and nutrients in the leaves, and there is a great correlation between the content of nitrogen and the chlorophyll spad value of the leaves. Imagine the value can be used for the reaction of nitrogen content, but only through the same amount of nitrogen fertilizer.
Read moreAccording to the National Internal Combustion Engine Sales Monthly Report of China Internal Combustion Engine Industry Association, the sales volume of internal combustion engines in the country was 4.946 million units in September 2014, down 3.71% year-on-year. The cumulative sales volume in Janua
Read moreAs the domestic economy is not optimistic, the domestic sales of lighting lighting is not satisfactory, and many companies choose to switch to overseas markets. Chen Yansheng, chairman of China Lighting Association, said that China has become the global LED lighting production base. In 2013, the lig
Read moreDrying equipment plays a decisive role in food machinery. No matter whether it is a simple food drying process or a high-tech milk powder production process, it is inseparable from the drying equipment. In recent years, the demand for food drying equipment in China has gradually increased, and its
Read moreCNC Angle Punching Marking Shearing Line This production line is suitable for eletric power, telecommunications, hardware, three-dimensional garage elevator manufacture, air condition
Read moreThe first half of 2014 has passed. All truck manufacturers have already delivered their answer sheets. There are both joys and worries. The liberation of FAW still maintains a strong upward momentum. Beiben has experienced a substantial downswing for several consecutive years. How will China's
Read moreWith the continuous improvement of modern science and technology, all walks of life have gradually joined the era of automatic intelligence, any industry, are moving toward the direction of automation, especially the automation of production equipment, product automation. The automa
Read moreToday Apple did not announce this incident in its own, the company created a SIM card that makes switch operators as simple SIM cards without having to visit physical carrier stores. Apple's SIM card will be loaded in the new iPad2, making it
Read more21 counties and cities across the country have recently signed a farewell to incandescent light bulbs. Light up the Smart City Proposal, and accelerate the implementation of green lighting renovation by adopting contract energy management mode. All incandescent lamps will be eliminated within the ci
Read moreBased on the above basic ideas, the optimal design of the double arc gear transmission is divided into two stages. First establish the objective function and determine the constraints. The objective function is an analytical expression that represents a certain performance metric that the design is
Read moreBecause in addition to the product itself has a large width to thickness ratio, the extrusion process also has a large width and width ratio. In addition, the metal flow in the extrusion deformation zone is very incompatible with the metal flow in the extrusion die. Therefore, the flat pipe is oft
Read moreMost security experts believe that you should use two-step verification to ensure the security of all your online accounts. When you access an online account, you need to have a physical project, usually a mobile phone, for secondary verification.
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