The gas introduction unit for metallurgical vessels has a body which is made of a refractory material and lets through gas. Its circumference and bottom are encased in sheet metal, with a gas inlet at the bottom. The gas channels in the unit lead to its side which is opposite to the ...
(1) the particles in a gas are in constant, random motion 气体分子是做均匀的随机运动(布朗运动) (2) the combined volume of the particles is negligible 粒子的体积可以忽略 (3) the particles exert no forces on one another 粒子不会对其他粒子产生力 (4) any collisions between the particles are...
Noun1.SI unit- a complete metric system of units of measurement for scientists; fundamental quantities are length (meter) and mass (kilogram) and time (second) and electric current (ampere) and temperature (kelvin) and amount of matter (mole) and luminous intensity (candela); "Today the Unit...
Moreover, the air-fuel ratio is controlled by a means G according to an output signal of the first oxygen concentration sensor C and the first control constant. And the correction integration constant is set by a means H so that the smaller it becomes the closer the output signal of the ...
Presenting a speech 做演讲Of all human creations, language may be the most remarkable. Through 在人类所有的创造中,语言也许是影响最为深远的。我们用语言
- 英文释义:(of a container or covering) accidentally lose or admit contents, especially liquid or gas, through a hole or crack. 33. electrical - 中文意思:电的 - 英文释义:operated by means of electricity. 34. wiring - 中文...
The latter can be estimated as \(D\propto \frac{{k}_{{{\rm{B}}}T}{m}\frac{V}{N{d}^{2}}\), where kB is Boltzmann’s constant, T the absolute temperature, V the volume of the gas, d the particle diameter, m the particle mass, and N the number of particles. Hence, one...
1.ConstituentsofPetroleum(石油的组成)•Crudepetroleumismadeupof（由….组成）thousandsof（数千种）differentchemicalsubstancesincluding gases,liquids,andsolidsandrangingfrommethanetoasphalt（沥青）.Mostconstituentsarehydrocarbons,buttherearesignificantamountsofcompounds containingnitrogen(0to0.5%),sulfur(0to0.6%...
（1）去年这个公司的手机销量增长了近一倍（为原来的两倍）。Thesalesvolumeofportablephonesofthiscompanyincreasednearlytwice/doubledlastyear.（2）过去20年中，中国的国内生产总值增长了近5倍。Inthepast20years,China’sgrossdomesticproductincreasednearlysixtimes.（3）1978年至1997年，中国人均生产总值增长了3.4倍...
AEL series automatic expansion valve hot gas bypass valve $95.00 - $100.00 Min. order: 1 piece Carrier parts 32GB500402 Compressor protection module programmed for 30HZV-225 control board price $650.00 - $680.00 Min. order: 1 set DL80 Electric defrost evaporator price Fin spacing 4.5mm air co...