Investigations and experiments indicate that charring ablator s provide the most efficient thermal protection shield for the re-entry vehicles.

載人飛船返回艙的燒蝕熱防護技術研究和試驗表明欧洲性生活视频，碳化燒蝕材料是再入飛行器最有效的熱防護層。

A special process named " silicification followed by carbonization" was adopted to solve the problems such as SiC grains forming on the SiO_.

通過"先硅化再碳化"的工藝方法可以較好地解決S iO2/S i復合襯底上S iC成核困難以及粘附性差的問題欧美午夜艳，同時還可以有效抑制S iO2中的O原子向S iC生長膜擴散国产一区二区三区手机在线观看。

A special process named "silicification followed by carbonization" was adopted to solve the problems such as SiC grains forming on the SiO2 and poor cohesiveness between the SiC and substrate. Furthermore,this method is effective to prevent O atoms diffusing from SiO2 into SiC epilayer.

通過"先硅化再碳化"的工藝方法可以較好地解決SiO2/Si復合襯底上SiC成核困難以及粘附性差的問題操我视频，同時還可以有效抑制SiO2中的O原子向SiC生長膜擴散。

The crystallitic carbon was prepared from anthracite by demineralization and carbonization,then the magnesium/carbon nanocomposites for hydrogen storage were manufactured through reaction milling of the mixture of magnesium,crystallitic carbon and aluminium under hydrogen atmosphere.

將無煙煤進行脫灰和碳化熟女激情视频，制備微晶碳又大又湿免费视频，再將微晶碳和鋁添加到鎂中，用氫氣反應球磨法制取鎂/碳納米復合儲氫材料中文字幕欧美精品人妻一丘。用透射電子顯微鏡性黑人大战欧美视频免费看、選區(qū)電子衍射、X射線衍射和差示掃描量熱分析對儲氫材料的粒度真人黄色网、晶體結構和放氫溫度進行了測定狠狠干天天碰天天色。

Manganese oxides supported on SBA-15 Mn(subscript xO/SBA-15 were prepared by incipient wetness impregnation of SBA-15 with furfuryl alcohol solution of manganese acetylacetonate or manganese nitrate followed by removal of the carbon resulted from carbonized FA.

采用溶液浸漬法將乙酰丙酮錳或硝酸錳的糠醇溶液分別灌注到SBA-15的孔道內，一定條件下將糠醇碳化后再將碳燒除字幕网国产在线观看，即可得到高度分散的MnO/SBA-15復合催化劑干干干干干干射射。

The method comprises following steps: reacting hydroxylation carbon nano-tube successively with reagent containing halogen and hydrosulphide to prepare sulfhydryl carbon nano-tube; reflowing the sulfhydryl carbon nano-tube and platinum salts in polyatomic alcohol, processing in hydrogen atmpsphere to obtain sulfhydryl anchoring platinum / carbon nano-tube catalyst; reflowing the sulfhydryl carbon nano-tube successively with the hydrochloroauric acid and the platinum salts in polyatomic alcohol, processing in hydrogen atmpsphere to obtain sulfhydryl anchoring platinum-gold / carbon nano-tube catalyst.

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The plant's treatment train includes chemical clarification, recarbonation, multimedia filtration, granular activated carbon, reverse osmosis, chlorination and blending.

21水廠的處理工藝流程包括：化學凈化亚洲三级片在线网址，再碳酸化，多媒介過濾91精品国产自产在线观看48页，活性碳處理亚洲国产一区二区av观看在线，反滲透，氯處理和混合人人扣B人人干B视频免费播放。

The distillated condensate of furnace gas showed that NH3 cleaning efficiency will reach to 98% and the recovery rate of CO2 reach to 30% while adoptingMl asabsorber, CO2 in tail gas recovered for carbonation-soda ash production, then ammonia and CO2 are recovered; the condensation of ammonia in waste water is lower than 0.5tt, CO2 is below 0.03tt, so it can be used directly as soft water, then it has decreased the total quantity of various water containing ammonia in soda ash making system and improved environment.

蒸餾爐氣冷凝液表明国产精品色在线播放，以M I作為吸收劑，NH_3的凈氨率達到98％国产精品福利一区，CO_2回收率達到30％日韩欧美精品视频在线观看_，尾氣中的CO_2再用于碳化制堿，氨和二氧化碳得到回收利用国产黄色网站在现免费观看；廢淡液中氨的濃度低于0.5tt免费黄色免费，CO_2低于0.03tt，可直接作為軟水使用欧美精品强奸视频，降低了含氨雜水的總量www.youjizz.com.日本，使純堿系統(tǒng)不再多余含氨雜水，改善了環(huán)境H片合集。

It was shown by further research that the formed tungsten oxide had an obvious layer-like structure, where from outer to inner layer the valence of tungsten increased and the reduction degree decreased. The carbonization of W depended on the replacement of W atom at the center of the body-centered cubic by C atom and the minor adjustment of C atom position and the lattice parameters.

深入研究表明免费一级在线视频播放，氧化鎢碳還原顆粒具有明顯的層狀結構，自外到內鎢的化合價遞增，還原程度降低性欧美精品久久久久；鎢的碳化是碳原子替換體心立方鎢晶胞的中心鎢原子在线观看黄片精品，然后碳原子轉換到鎢原子點陣間隙再經晶胞常數微調而形成。

Investigations and experiments indicate that charring ablators provide the most efficient thermal protection shield for the re-entry vehicles.

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ketene：烯酮

比如現代大規(guī)模生產乙酸(acetic acid)的方法之一,是讓甲醇與一氧化碳在高壓和觸媒的作用下進行碳化反應,其綜合反應式是:如圖9.1所示,這是一個將乙酸在高溫爐中裂解,生成烯酮(ketene)和水的反應過程,其后續(xù)反應是烯酮再與乙酸合成,

recapture：重新利用,恢復

recalibration 重新校準[刻度] | recapture 重新利用,恢復 | recarbonation 再碳化作用

acylation：跖磺悠低荆化

因此本研究將奈米碳管以化學的方式改質,首先利用羧化(carboxylation)反應的方式讓奈米碳管帶有羧酸基(carboxylic acid groups,-COOH)進而具有水溶性,而后再利用醯化(acylation)反應使奈米碳管帶有醯氯基(acyl chloride,

coking：煉焦

不過因為煤是一種自然物質含有大量不純物,不能直接使用,所以先經過煉焦(coking)處理,變成焦炭再使用. 現在我們來討論一下煤: (1)煤的成因及貯藏:煤是上古時代的植物,由于地殼的變動被埋藏在地下,長年受地殼壓力和地心熱力的影響逐漸碳化而成的.

recarbonation：再碳化作用

recapture 重新利用,恢復 | recarbonation 再碳化作用 | receiving tank 貯槽

recarbonization：再碳化

recarbonationtower 再碳酸化塔 | recarbonization 再碳化 | recarbonize 再碳化

recarbonize：再碳化

recarbonization 再碳化 | recarbonize 再碳化 | recarburation 再滲碳 再碳化 增碳作用 二次增碳作用

recarburize：增碳

recarburization 再滲碳 再碳化 增碳 | recarburize 增碳 | recarburizer 再碳化劑 再增碳劑 增碳劑

recarburizer：再碳化劑

recarbonizationrecarbonize 再碳化 | recarburizer 再碳化劑 | recarburizer 再增碳劑

Stearyl Alcohol：十八烷醇

為了增加多壁奈米碳管在復合材料中的分散性,將碳管表面進行化學修飾,首先將多壁奈米碳管浸入HNO3溶液中,進行酸化,使碳管表面帶有羧酸(-COOH)的官能基,然后再加入十八烷醇(Stearyl alcohol),在溫和的條件下,藉由N,N'-二環(huán)己基碳二亞胺(N,