prepatation

常见例句

• The prepatation of 2,4-di-tert-butylphenol by alkylating with phenol and isobutene as materials,catalyst is well activity,conversion of phenol is more 90%,total yield of alkylation is 90%.
  採用苯酚、異丁烯爲原料,烷基化反應生産2,4-酚,所用自制催化劑具有很高的活性,苯酚轉化率大於990%25,烷基酚收率可達90%25。
• This paper dealed with the prepatation of plasticizer by mixing the 810 ester with DOP in different ration which is used in the production of soft PVC granule for automobiles sealant strip.
  研究了將 810酯和DOP按各種比例混郃作主增塑劑 ,用於制作汽車密封條用PVC軟質粒料 ;試騐了810酯用量比對材料硬度、拉伸強度、斷裂伸長率、廻彈性、熱失重、熔躰流動速率的影響。
• Prepatation and Uses of Load Fluid QY for Gas Well Control
  QY氣井壓井液的研制與應用
• Prepatation of Magnesium Hydroxide and Adsorption Performance of Dark-Green Dyestuff to Magnesium Hydroxide
  氫氧化鎂的制備及對直接墨綠染料的吸附性能研究
• Study on the Prepatation of Chitosan Oligomers with Peroxide Degradation and Analysis Molecular Weight and Polydispersity
  過氧化氫制備殼低聚糖及分子量和其分佈的研究
• Study of the Prepatation of the Field Ionization Gas Sensor Based on the One Dimension Materials and Its Gas Sensitivity
  一維納米材料的場致電離傳感器的研制及其氣敏特性研究
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