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Fuel gas is widely used by industrial, commercial and domestic users. Industry uses fuel gas for heating furnaces, kilns, boilers and ovens and for space heating and drying . The electricity industry uses fuel gas to power gas turbines to generate electricity. The specification of fuel gas for gas turbines may be quite stringent. [5]
In Vietnam, the emphasis mark (dấu nhấn mạnh) was written with various marks such as a dot, circle, or a sesame dot. It is commonly positioned to the right of the character. After Vietnam switched to the Latin alphabet, emphasis marks fell into disuse as bolding, underlining, and italics replaced the usage of emphasis marks.
ROB – received on board (used for fuel/water received in bunkering operations [citation needed]) ROCT – rotary coring tool; ROP – rate of penetration; ROP – rate of perforation; ROT – remote-operated tool; ROV/WROV – remotely-operated vehicle/work class remotely-operated vehicle, used for subsea construction and maintenance ...
Since the early 1990s, many fuel gauges have included an icon with a fuel pump and an arrow, indicating the side of the vehicle on which the fuel filler is located. [ 5 ] [ 6 ] The use of the icon and arrow was invented in 1986 by Jim Moylan, a designer for Ford Motor Company .
The main Vietnamese term used for Chinese characters is chữ Hán (𡨸漢).It is made of chữ meaning 'character' and Hán 'Han (referring to the Han dynasty)'.Other synonyms of chữ Hán includes chữ Nho (𡨸儒 [t͡ɕɨ˦ˀ˥ ɲɔ˧˧], literally 'Confucian characters') and Hán tự [a] (漢字 [haːn˧˦ tɨ˧˨ʔ] ⓘ) which was borrowed directly from Chinese.
The fuel for these early engines was a relatively volatile hydrocarbon obtained from coal gas. With a boiling point near 85 °C (185 °F) (n-octane boils at 125.62 °C (258.12 °F) [4]), it was well-suited for early carburetors (evaporators). The development of a "spray nozzle" carburetor enabled the use of less volatile fuels.
No. 5 fuel oil is also called Navy Special Fuel Oil (NSFO) or just navy special; No. 5 or 6 are also commonly called heavy fuel oil (HFO) or furnace fuel oil (FFO); the high viscosity requires heating, usually by a recirculated low pressure steam system, before the oil can be pumped from a bunker tank. Bunkers are rarely labeled this way in ...
Typical airflow in a four-stroke engine: In stroke #1, the pistons suck in (aspirate) air to the combustion chamber through the opened inlet valve.. A naturally aspirated engine, also known as a normally aspirated engine, and abbreviated to N/A or NA, is an internal combustion engine in which air intake depends solely on atmospheric pressure and does not have forced induction through a ...