例句與造句

1. Due to preparing high grade rutile nanometer titanium dioxide in the same method have more disadvantages such as tall calcining heat , easy agglomerate , reunite gravely and difficult to attain the nanometer grade
   由于用與之相同的方法制備金紅石型納米tio _ 2粉體存在焙燒溫度高、易燒結、團聚現(xiàn)象嚴重等缺點，難以達到納米級。
2. In this paper , concentrated sulfuric acid and titanium dioxide are used to prepare the tios04 solution that test later required under long time heat . the influences of reaction time and reaction temperature to yield of tioso4 are discussed . in the experiment of preparing tio2 powder , reaction temperature , ph values , material ratio , operation way , velocity of feed , calcining heat and time are researched by the principle of nucleation and growth in thermodynamics and kinetics
   在制備tio _ 2粉體實驗中，根據(jù)成核生長的熱力學和動力學原理，深入分析了沉淀反應時環(huán)境的溫度、 ph值、反應物配比、操作方式、加料速度等因素對ti ( oh ) _ 4粒度的影響，以及焙燒溫度和保溫時間等因素對制得的納米tio _ 2粉體性能的影響，得出了制備銳鈦型納米tio _ 2粉體的優(yōu)化工藝條件。
3. In this work , layered lini1 - xalxo2 ( 0 < x 1 / 2 ) solid solution materials were successfully synthesized by current co - precipitation method in the air , and their preparation and properties were deeply and systematically explored . influences of different factors on the structure and properities of samples were studied , including li resources , different performs , li / m ( oh ) 2 molar ratio , calcining heat condition , the best synthesis technics were concluded : sintered for 16h at 700 from li source ( lithium nitrate ) : m ( oh ) 2 = 1 . 05 : 1 , ultrasonic vibration for dispersing and catalysing are best . lini0 . 8al0 . 2o2 exhibited a discharge capacity of 130 . 7 mah ? g - 1 in the voltage range of 2 . 8 ~ 4 . 40v and at a specific current of 0 . 2 c . a new co - precipitation method was proposed , it included ultrasonic for dispersing and catalysing , by dropping lioh to the aqueous solution of metal nitrates , hydroxides of metals were precipitated and the resulting solution was evaporated as received
   采用傳統(tǒng)共沉淀工藝在空氣氣氛中成功地合成出了二元lini1 - xalxo2 ( 0 < x 1 / 2 )層狀固溶體系列,綜合考察了不同鋰源、預處理方式、鋰的配比量、焙燒溫度等條件對合成產物的結構和性能的影響,確定出了最佳合成工藝:以硝酸鋰為鋰源,超聲波作為分散動力源,鋰源與鎳鋁金屬鹽摩爾比為1 . 05 : 1 , 700下焙燒16h的lini0 . 8al0 . 2o2樣品電化學性能最佳,在2 . 8 ~ 4 . 40v之間, 0 . 2c的倍率放電可逆容量達130 . 7mah ? g - 1 。
4. It's difficult to find calcining heat in a sentence. 用calcining heat造句挺難的