First, the selection of plots to raise seedlings to choose the terrain Gaozao, drainage and irrigation facilities, soil fertility, good permeability of the land, most bogey continuation of land or on the same species of vegetables grown on the land plot, so as not to cause soil-borne dis

The technical staff of Liaohe Oilfield Company Shuguang Refinery Technology Research Institute made technical improvements and made breakthroughs in the small pump which is hailed as the old heart "heart". The improved small pump deep pumping technology in pumping wells "blood for li

"If you haven't traveled abroad and haven't had a chance to take a look at some of the well-known heavy-duty truck factories in Europe and America, then please look at the new base in Shaanxi Auto. Shaanxi Auto represents the world level of today's heavy trucks." This is the

In October of this year, domestic commercial vehicle manufacturers intently aimed at the core components - the engine: Foton Motors and Cummins signed a formal joint venture agreement, its Tianjin Perkins IV natural gas engine officially listed, Weichai Power introduced WD12 high-powered diesel en

This year, China's petroleum and chemical industries have achieved better than expected results. However, the problem of excessive investment in fixed assets and declining industrial efficiency during the economic operation is very prominent. Li Yongwu, president of the China Petroleum and Chem

Abstract: The factors affecting the fuel economy of truck cranes are analyzed from different working conditions, and the measures that can be taken to improve fuel economy are proposed from the perspective of design. Keywords: fuel economy condition, truck crane For a long time

At present, the society is more concerned about the progress of the transportation tax and fee reform and the collection of road maintenance fees. To help the public better understand the situation, Xinhua News Agency reporters interviewed the NPC Standing Committee Legal Affairs Working Committee

The well-known packaging equipment company in Italy --- Oakmee Co., Ltd. recently invested in the establishment of a wholly foreign-owned Oakme Packaging Equipment (Jiaxing) Co., Ltd. in Jiaxing Economic Development Zone, Zhejiang. The first phase of the project will have a total investment of 1.8

Recently, South Korea’s Hanjin Shipping Company said that when the 11,000 TEU ultra-large container ship ordered by world shipping giant Maersk will officially launch in September, the company will first order 10,000 TEU-class container ships in its country to catch up with the ship. The tre

Abstract: This paper describes the main purpose of fire damper and exhaust valve, and its important role in ventilation, air conditioning and smoke control systems. It also expounds the logical relationship between the quality requirements of engineering application and the fire linkage requirements

Industry analysts believe that the current market operation of desulphurization equipment is still too early to speak. Uneconomical economic benefits and lack of policy support allow most companies to adopt a wait-and-see approach to the operating market. On the other hand, the quality of domestic

(1) Principles for determining the processing plan The processing plan is also called the process plan. The machining plan of the CNC machine tool includes the formulation of the process, the work step and the route of the cutter. In the machining process of CNC machine tools, d