435 篇
154 篇
14240 篇
708 篇
255 篇
78 篇
422 篇
32 篇
1946 篇
713 篇
41 篇
140 篇
454 篇
96 篇
60 篇
103 篇
51 篇
293 篇
179 篇
59 篇
[电力、热力、燃气及水生产和供应业,石油加工、炼焦和核燃料加工业] [2024-01-26]
Coal gasification is a thermochemical process in which coal is subject to heat and pressure in a gasifier to break it down into its chemical constituents. The resulting product, known as syngas, primarily comprises carbon monoxide and hydrogen and, occasionally, other gaseous compounds. Syngas can be used for electricity generation, as a fuel in energy-efficient fuel cell technology, and even as a chemical building block in industrial applications. Moreover, hydrogen can be extracted for use as fuel in a hydrogen economy. Also, syngas can be used to produce transportation fuels that can be a substitute for gasoline in vehicles.
[电力、热力、燃气及水生产和供应业,石油加工、炼焦和核燃料加工业] [2024-01-25]
Shale gas is a type of natural gas that is trapped within shale rock formations deep beneath the Earth's surface. It is a fossil fuel, like conventional natural gas, primarily composed of methane with small amounts of other hydrocarbons and trace impurities.
[石油加工、炼焦和核燃料加工业,文化、体育和娱乐业,印刷和记录媒介复制业] [2023-11-30]
Material Type: News inks Industry: Printing ink manufacturing
[石油加工、炼焦和核燃料加工业,其他制造业] [2023-11-30]
Material Type: Fireworks Industry: All other chemical product and preparation manufacturing
[石油加工、炼焦和核燃料加工业,信息传输、软件和信息技术服务业] [2023-11-30]
The global 5G in oil & gas market will gain momentum with the growth in complexity in organizations, increased competition from renewable resources, a rise in focus on the improvement of margins by cost minimization, and increased operational efficiency to reduce unmanned downtime
[石油加工、炼焦和核燃料加工业] [2023-11-01]
Over the past few years, re-refining of waste base oil gained tremendous importance. It not only helps preserve natural resources but also helps manage waste oil. Mismanagement of waste oil can lead to a detrimental effect on the environment. Disposal of waste oil on waterways can harm aquatic life as used oil contains soluble and insoluble contaminants, such as metals, gums, varnish, additives, and other harmful chemicals. Metal-containing waste oil released into the environment can lead to the formation of algae. The resulting algae population depletes the aquatic oxygen supply, thereby threatening aquatic animals. Therefore, governments across countries take measures to promote the re-refining of base oils.
[化学原料和化学制品制造业,石油加工、炼焦和核燃料加工业] [2023-10-01]
The equipment described in this report are primarily defined by its title since the title is generally long and includes most of the criteria used to differentiate the equipment from other similar equipment. The equipment descriptions are sourced from the U.S. Census. Additionally descriptions can be collected from the manufacturing industry descriptions that each equipment is categorized. The U.S. Census manufacturing industry descriptions for equipment are listed below
[印刷和记录媒介复制业,石油加工、炼焦和核燃料加工业] [2023-09-30]
The Material described in this report are primarily defined by its title since the title is generally long and includes most of the criteria used to differentiate the Material from other similar Material. The Material descriptions are sourced from the U.S. Census. Additionally descriptions can be collected from the manufacturing industry descriptions that each Material is categorized. The U.S. Census manufacturing industry descriptions for Material are listed below
[石油加工、炼焦和核燃料加工业,化学原料和化学制品制造业] [2023-09-29]
The equipment described in this report are primarily defined by its title since the title is generally long and includes most of the criteria used to differentiate the equipment from other similar equipment. The equipment descriptions are sourced from the U.S. Census. Additionally descriptions can be collected from the manufacturing industry descriptions that each equipment is categorized. The U.S. Census manufacturing industry descriptions for equipment are listed below
[石油加工、炼焦和核燃料加工业] [2023-07-01]
Nuclear decommissioning is dismantling a nuclear facility, so it no longer requires radiation protection measures. The presence of radioactive material necessitates potentially hazardous, expensive, time-consuming processes and presents environmental risks that must be addressed to ensure radioactive materials are either transported elsewhere for storage or stored on-site safely. The high risk of accidents and lessons from historic events can boost the demand in the nuclear decommissioning market. Furthermore, the increasing pressure from environmental groups due to public concerns related to nuclear reactor operations and hazards from radioactive wastes may increase the demand in the nuclear-decommissioning market.