断断续续
发表于 2025-3-25 03:29:31
Solid Fuels,scientists. Coal is a natural product, formed from plant material deposited many million years ago and converted over the years by the agencies of heat and pressure into the rock like material we know now. Not surprisingly, the nature of any particular sample of coal has been formed both by the orig
originality
发表于 2025-3-25 08:23:50
Solid Fuel Combustion Equipment,varying combustion characteristics of the available fuels and the widely differing types of plant to which the equipment is fitted. The competitive situation prevailing in the fuel market has given impetus to the development of new and more efficient combustion equipment and has led to less-effectiv
诱使
发表于 2025-3-25 14:09:21
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interrupt
发表于 2025-3-25 18:14:26
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疯狂
发表于 2025-3-25 21:17:45
Fuels for Diesels & Turbines,s, through automotive diesel fuel to heavy marine fuel oil, used in slow speed main propulsion engines. They are distinguished by differences in viscosity, boiling range, combustion characteristics, chemical composition, and many other properties. All are derived from three basic types of refinery c
暂时休息
发表于 2025-3-26 03:22:58
Motor Fuels,ty) at 60°F/60°F (15·6°C/15·6°C) = 0·70–0·79; boiling range = 30°C–220°C. Motor fuels are classified further by their end use but there are variations in local terminology. Terms commonly applied to motor fuels, and which have been used appropriately in this chapter, are:–
Texture
发表于 2025-3-26 05:30:07
Natural Gas,of salt. The gas from these wells was transported to the point of consumption in bamboo pipes. Natural gas was known to exist in Japan as early as 615 B.C. and in the Western World gas was known and used in Grenoble, France, and Genoa, Italy, in the time of Julius Caesar.
APEX
发表于 2025-3-26 09:21:08
Gas-firing Equipment,chapter. To describe and to list the types of gas combustion systems available and the types of application to which they are suited would result in a catalogue of hardware. Instead, a survey of the various basic types of combustion systems for gas is made and then an indication is given of some of
不能逃避
发表于 2025-3-26 16:09:24
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向外供接触
发表于 2025-3-26 18:39:22
Electric Heating,n can often fully justify this usage despite electricity being more expensive than any of the natural or manufactured fuels so far as the cost per unit of gross heat is concerned. This is even more true when the high efficiency with which this gross heat can be turned into usable heat is taken into