Each letter or symbol is connected to an individual electric heating element. When the marking head is pressed against a log with the appropriate heating elements switched on, the symbols are burnt into the surface of the timber. The head is then cooled by air from a cooling fan (20)....
awhat's that ?it is shaped like a ball 那是什么?它是形状象球 [translate] aFor example, when heating the starting raw materials for 2 h at 180 °C, the calcined amorphous sample shows typical isotherm for Langmuir adsorption, giving HK pore size distribution at 0.8 nm 例如,当加热开始的...
aAll the important parts of the clothes washer are electrically controlled, including the inner drum, the valves, the pump , and the heating element. The programer is like the conductor of an orchestra, switching these things on and off in a sensible sequence that goes something like this: ...
Platinum, chemical element, the best known and most widely used of the six platinum metals. A very heavy, precious, silver-white metal, platinum is soft and ductile and has a high melting point and good resistance to corrosion and chemical attack. Learn
Each element has a characteristic line spectrum that can be used to identify the element. Note that line emission spectra can also be obtained by heating a salt of a metal with a flame. For instance, common salt (sodium chloride) provides a strong yellow light to the flame coming from exci...
For example, if we have an output 0010 for a word aaba then output3(aaba)=1. A set is prefix closed iff all the prefixes of every element of the set are also elements of the set. A set is suffix closed iff all the suffixes of every element of the set are also elements of the...
cesium (Cs),chemical elementof Group 1 (also called Group Ia) of theperiodic table, thealkali metalgroup, and the first element to be discovered spectroscopically (1860), by German scientistsRobert BunsenandGustav Kirchhoff, who named it for theuniqueblue lines of its spectrum (Latincaesius, ...
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The element 42 is used in making alloys including steel for increasing its hardness, strength, resistance to corrosion, and electrical conductivity[1, 5]. Molybdenum alloys are used in aircraft engines, power generation turbines, and nuclear power plants, as well as in heating elements like saw ...
and a three module width space. The counts associated with the printing of this symbol are generally unique to each printer, and for a thermal printer, would represent the time intervals between transitions between bars and spaces to appropriately activate the printer's heating element as the ther...