In section one, by using fice scheme and time - gcm, a model of trace gases and oh airglow affected by gravity wave is set up, then the propagation of nonlinear gravity wave and the effect on trace gases and oh airglow are analyzed. the result shows gravity wave excited by tropospause forcing can propagate stably to the mesosphere through the stratosphere so that energy and momentum can be transferred from one region to another. in this process, gravity wave undergoes growth, overturning, convection and breaking
在第一部分的工作中,利用全隱歐拉格式和全球
熱層-電離
層-中間
層-電動力學環流耦合模式( time - gcm ) ,對重力波的非線性傳播及其在傳播過程中對中高
層大氣中氧族和氫族成分和與之密切相關的oh氣輝輻射的影響進行了數值模擬,結果表明,從對流
層向上傳播的重力波經歷了產生、發展、飽和、對流產生直至破碎的非線性演化,大氣的非等溫結構加速了重力波在中
層頂區的破碎,重力波的非線性傳播是小尺度對流和湍流產生的一個重要的源。
All tanks are powder and vacuum insulated in the annular space
所有罐都有真空環形隔
熱層。
You are a range above 100 ghz it is necessary to do the pyramids from polyfoam imbrued by graphite and suffuse with crystal magnesium seven water
頻率范圍在3200赫茲到100千兆赫之間,只簡單需要幾個鋼或鋁的簡單隔
熱層。
The insulation must be protected from moisture.
隔
熱層必須防潮。
In a hot climate the condensation will be on the inner surface of the insulator.
在氣候炎
熱時,凝結水將出現在隔
熱層的內表面。
Mineral wool sprayed insulation
礦物棉噴塗絕
熱層
Because thermal insulation was in oxygen - riched condition of afterburner and charred layer was porous, oxygenous gas in mixture would penetrate into charred layer and chemical reaction would take place in whole charred layer, which intensified the ablation process
由於絕
熱層處於二次燃燒室富氧的環境中,而且炭化
層為疏鬆多孔狀物質,因此將化學反應引入到整個炭化
層中。
Sandwich board structure ( aluminum foil - insulating layer - aluminum foil ) guarantee excellent noise performance
夾芯板結構(鋁箔-隔
熱層-鋁箔)保證了優良的隔音性能。
This machine has many accessory moulds for various kinds of colored pavement bricks, grass - planting bricks, sideway bricks and heat insulation bricks
該機配套各種模具,可壓制各種彩色人行道板磚植草磚路側石磚隔
熱層磚等。
Abstract : from the point of theoretical analysis, this dissertation provides the coupling calculation on the hot gas temperature field and ablation in the cavity between stress release boot and insulation of solid motors. through the calculation, some law of the ablation of the stress release boot is found
文摘:從理論分析的角度出發,通過對人工脫粘
層和絕
熱層所構成的槽縫燃氣溫度場與燒蝕的耦合計算,得出了人工脫粘
層的燒蝕規律。
The temperature rises rapidly to between 500k and 2000k in the region known as the thermosphere.
在稱之為「
熱層」地區域內,溫度很快上升到500K與2000K之間。
The temperature rises rapidly to between 500k and 2000k in the region known as the thermosphere
在稱之為「
熱層」地區域內,溫度很快上升到500k與2000k之間。
Study on middle - temperature vulcanization epdm insulation formulation
中溫硫化三元乙丙橡膠絕
熱層配方研究
Design of adjustable heat - insulate layer for coal fired boiler
燃煤鍋爐可調衛燃帶活動隔
熱層的設計
Fire extinguishing pylon is designed with the help of lots of design institute in order to meet the fireproof requirement. it s made of fire extinguishing panel and common steel pylon or fire extinguishing dent, heat isolation layer and general steel pylon. its quality in fire extinguishments, electricity, and metal framework has over - passed the relevant standards of usa and japan etc
防火橋架是我公司為滿足消防要求,在眾多設計單位支持下,研製成功的耐火鋼制橋架,具體結構有阻燃板加普通鋼制橋架和防火槽盒加隔
熱層加普通鋼制橋架兩種,其耐火性能電氣性能金屬結構性能已超過美國日本等國的有關標準。
Because the propellant grain is viscoelastic material, the liner and adiabatic layer are also viscoelastic one, the interface debond problem is actually interface crack about elastic - viscoelastic or bi - viscoelastic materials. research about this problem relates to the knowledge of viscoelastic mechanics and interface fracture and combustion. numerical analysis method about interface debond on solid rocket motor is researched in this paper
由於固體火箭發動機的推進劑藥柱是一種粘彈性材料,襯
層和絕
熱層也具有粘彈性性質,因此其界面脫粘問題實際上是彈性-粘彈性或雙粘彈性各向同性材料界面裂紋問題,對該問題的研究涉及到粘彈性力學、界面斷裂力學和燃燒學等相關學科。
The problem of thermospheric heat balance may also be written in time-dependent form.
熱層的
熱平衡問題亦可以寫成與時間有關的形式。
Installations and equipment for liquefied natural gas - testing of insulating linings for liquefied natural gas impounding areas ; german version en 12066 : 1997
液化天然氣用裝置和設備.液化天然氣收集盆的隔
熱層的
District heating pipes - preinsulated bonded pipe systems for directly buried hot water networks - pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene
區域供暖管道.直埋式
熱水供暖網的預絕
熱連接的管道系統.聚氨酯絕
熱層和聚乙烯外覆
層的鋼管組件
Based on the model, a theoretical equation for designing the thermo - insulator and a design solution of the crucible assembling system has been suggested. whereby, the designing problem in the heating system of crucible components is solved, and the graphic crucible component system in practical application is designed and manufactured. 2
通過對碳化硅生長設備中石墨坩堝系統的徑向組合傳熱問題的分析討論,建立了系統熱分析的理論模型,提出了絕熱層設計的理論依據,解決了坩堝組件熱系統的設計問題並設計製作了實際應用的石墨坩堝組件系統。