The thesis can be divided into five parts as follows: First, the structural characteristics of finned-pipe evaporator are analyzed. After selecting suitable microelement controller, the heat-transfer and mass-transfer processes are analyzed for every microelement under the conditions of dryness, wetness and frostiness. Based on previous equations, some parameters of frostiness are confirmed and the frost-growing model is set up under frost condition. Some hypotheses are postulated and with the help of the equation of mass-conservation, energy-conservation and momentum-conservation, the evaporation model which fits in the dynamic simulation is built, which set a solid foundation for system simulation. Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. Third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet-parameter on evaporator. Fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio-parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping.

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Mechanism of frosting formation for airside heat exchanger is analyzed, the existing problems in the formula of frost density change being used now are pointed out, and the accurate formula of it is firstly concluded from the ideal gas state equation and Clapeyron-Clausius equation.

分析了空氣源熱泵冷熱水機組空氣側(cè)換熱器結(jié)霜的機理国产女主播喷水高潮视频，筆者指出了目前計算用于霜密度變化的結(jié)霜量變化率公式中存在的問題亚洲国产成AV人天堂无码，提出了根據(jù)理想氣體狀態(tài)方程和Clapeyron-Clausius方程推導(dǎo)出的計算用于霜密度變化的結(jié)霜量變化率的公式。

Joc 謔 frost considered as a person霜: Look what pretty patterns Jack Frost has painted on the windows.

瞧霜大哥在窗戶上繪制了多麼美麗的圖案人人操人人污。

Water, rosemary extract, cetearyl alcohol, almond oil*, sorbitan stearate, grapeseed oil, polysorbate-60, beeswax*, wheatgerm oil, yarrow extract, comfrey extract*, basil oil, aloe vera, shea nut butter, glycerin, tocopherol acetate, potassium sorbate, phenoxyethanol, alcohol denat.

這個是NYR公司出品中于乳香面霜齊名的一款看家面霜爱爱大学网址入口，真的很不錯，好多給痘痘和豆印困擾的買家MM都說這個是她們夏天的救星面霜人人干干免费黄色视频9，因為這款面霜在夏天是最最最最適合混合皮膚的一级a做一级a做片性视，一點也不油膩。

To see them off late at night in the cold wind秋霜Falling leaves will not say all love is a treasure Yutu go into a turn, do not litter on laurel merciless

送行深夜冷風(fēng)中秋霜落葉飄零將所有的沒說出的愛都化成一句珍重玉兔歸轉(zhuǎn)免费人妻系列无码专区，桂樹枯盡未必月無情

Defrosting 除霜 The manual defrost type, shall be provided with an easily removable drip tray of sufficient capacity to hold all the defrost water and designed to permit a proper air circulation.

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An analytical model to simulate the performance of evaporators for indirect cooling refrigerators under frosting conditions was established. The mass of frost accumulating on the evaporator surface, the airside pressure drop, the frost density and thickness were calculated.

在改進現(xiàn)有的計算霜表面水蒸氣過飽和度公式的基礎(chǔ)上，建立了適用于間冷式冰箱蒸發(fā)器的霜層生長模型www.一级av在线免费观看，并模擬出結(jié)霜過程中的結(jié)霜量黄色在线观看1区，空氣側(cè)壓降，霜的密度和厚度隨時間的變化亚洲一级片综合视频。

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An analytical model to simulate the performance of evaporators for indirect cooling refrigerators under frosting conditions was established. The mass of frost accumulating on the evaporator surfacethe airside pressure dropthe frost density and thickness were calculated.

在改進現(xiàn)有的計算霜表面水蒸氣過飽和度公式的基礎(chǔ)上男生免费看黄色网站，建立了適用于間冷式冰箱蒸發(fā)器的霜層生長模型日韩欧美一卡二卡，并模擬出結(jié)霜過程中的結(jié)霜量，空氣側(cè)壓降日韩乱码无码中文视频，霜的密度和厚度隨時間的變化AV美女激情在线。

defrost：除霜

除霜(Defrost)除霜(Defrost) 蒸發(fā)器之盤管表面隨著冷凍機的運轉(zhuǎn),空除霜(Defrost) 因為結(jié)霜,通過盤管之通氣受阻,妨礙空除霜(Defrost)由上可知結(jié)霜對冷凍能力有很不良的影響,所以必需定期將附著於盤管之霜国内精品国产免费观看一级A片、冰

defroster：除霜器,除霜裝置

Deformed steel 異型鋼 | Defroster 除霜器,除霜裝置 | Defroster control 除霜器控制器

Defroster control：除霜器控制器

Defroster 除霜器,除霜裝置 | Defroster control 除霜器控制器 | Defroster diffusor 除霜器擴散口

Defroster control：除霜器節(jié)制器

Defroster 除霜器,除霜裝配 | Defroster control 除霜器節(jié)制器 | Defroster diffusor 除霜器廓張口

Defroster control：除霜器控制器 (來源:中國電動車信息網(wǎng))

Defroster 除霜器,除霜裝置 | Defroster control 除霜器控制器 (來源:中國電動車信息網(wǎng)) | Defroster diffusor 除霜器擴散口

Anti-aging Moisturizer：抗老潤膚(霜/凝霜/乳液)

Recoup Recovery Cream 煥膚霜 | Anti-Aging Moisturizer 抗老潤膚(霜/凝霜/乳液) | Activate Eye Cream 活化眼霜

Bremia：盤霜霉屬

霜霉病的病原菌為真菌門,鞭毛菌亞門,卵菌綱,霜霉目,霜霉科,為害觀賞植物的主要有霜霉屬(Peronospora)国产AV无码宅吉看久久久久久、軸霜霉屬(Plasmopara)和盤霜霉屬(Bremia)等. 病菌只能寄生于活的花木上,有的有明顯生理分化.

Peronospora：霜霉屬

(2)霜霉屬 (Peronospora)屬于卵菌綱霜霉目 (Peronosporales),是 高等植物病害的專性寄生菌,危害蔬菜和油料作物. 常見的為寄生霜霉 (十 字花科霜霉)[Peronospora parasitica (Pers)Fr.] ,是十字花科的主要 病菌、寄生于白菜漂亮人妻18P、油菜野狼社区精品、甘藍(lán)、花椰萊caopor超碰在线、蕪菁国产在线不卡免费AV网站、蘿卜和芥菜上.

Plasmopara：軸霜霉屬

霜霉病的病原菌為真菌門,鞭毛菌亞門,卵菌綱,霜霉目,霜霉科,為害觀賞植物的主要有霜霉屬(Peronospora)、軸霜霉屬(Plasmopara)和盤霜霉屬(Bremia)等. 病菌只能寄生于活的花木上,有的有明顯生理分化.

Frostfire Bindings：霜火護腕 霜火束腕

Frostfire Shoulderpads 霜火護肩 霜火肩墊 | Frostfire Bindings 霜火護腕 霜火束腕 | Plagueheart Shoulderpads 瘟疫之心護肩 瘟疫之心肩墊