負壓排風扇 相關
廣告多年經驗累積，數千家廠房的實際安裝經驗，提供所有企業解決廠房悶熱通風不良的方案！ 提供專業製造風扇、通/排風扇、排風機、散熱風扇、軸流FRP喇叭扇等工業用風扇，適用於工廠廠房。
多項專利通風設備，外銷各國，有效改善工廠悶熱、異味、粉塵、排煙問題達95％以上，立即洽詢...
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Back pressure is the term used for the hydraulic pressure required to create a flow through a chromatography column in high-performance liquid chromatography, the term deriving from the fact that it is generated by the resistance of the column, and exerts its influence backwards on the pump that must supply the flow.
To avoid potential ambiguity when referring to pressure in fluid dynamics, many authors use the term static pressure to distinguish it from total pressure and dynamic pressure; the term static pressure is identical to the term pressure, and can be identified for every point in a fluid flow field.
Slang words for zero include "zip", "zilch", "nada", and "scratch". [7] In the context of sports, "nil" is sometimes used, especially in British English. Several sports have specific words for a score of zero, such as "love" in tennis – from French l'œuf, "the egg" – and "duck" in cricket, a shortening of "duck's egg".
Negative energy - Wikipedia. Negative energy is a concept used in physics to explain the nature of certain fields, including the gravitational field and various quantum field effects. Gravitational energy, or gravitational potential energy, is the potential energy a massive object has because it is within a gravitational field.
a measure of a system's thermal energy per unit temperature that is unavailable for doing useful work. [60] In Boltzmann's analysis in terms of constituent particles, entropy is a measure of the number of possible microscopic states (or microstates) of a system in thermodynamic equilibrium.
In linear algebra, a rotation matrix is a transformation matrix that is used to perform a rotation in Euclidean space. For example, using the convention below, the matrix. rotates points in the xy plane counterclockwise through an angle θ about the origin of a two-dimensional Cartesian coordinate system.
A thermobaric weapon, also called an aerosol bomb, or a vacuum bomb, [1] is a type of explosive munition that works by dispersing an aerosol cloud of gas, liquid or powdered explosive. [2][3] The fuel is usually a single compound, rather than a mixture of multiple molecules. [4] .
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