1.
PREPARATION AND MECHANISM OF A POUR POINT DEPRESSANT FOR HIGH POUR POINT CRUDE OIL
高凝原油降凝剂的制备及其降凝机理
2.
Studies on the Combination and Mechanism of Crude Oil Pour Point Depressant;
原油降凝剂的复配及降凝剂降凝机理研究
3.
The Synthesis of Two Kinds of PPD for Lubricant and Study on the Pour Point Depression Mechanism;
两种润滑油降凝剂的合成及降凝机理研究
4.
Development of New Lubricating Oil Pour Point Depressant and Research on Depression Mechanism
新型润滑油降凝剂的研发及降凝机理研究
5.
Synthesis of Copolymer OMA as Pour Point Depressant for an African Crude Oil
共聚物OMA降凝剂的合成及对非洲原油降凝评价
6.
Depressive Effect of Polyacrylate (PA) Pour Point Depressant on Waxy Crude Oils
聚丙烯酸酯降凝剂对含蜡原油降凝规律的研究
7.
Studies on Pour Point Depression of Synthetic Waxy Oils by Poly(n-Alkyl Acrylates)
聚丙烯酸酯降凝剂对合成蜡油降凝规律的研究
8.
Development of a Composite Pour Point Depressant for Shengli High Pour Point Crude Oil
胜利油田高凝原油复配降凝剂的研制
9.
Preparation of PPD and Crystalline Wax Dispersant and Performance Research on Lowering SP and CFPP
柴油降凝剂和蜡晶分散剂的制备及降凝降滤性能研究
10.
Synthesis of Higher Alcohol Acrylate Polymer as Pour Point Depressant and Its Mechanism in Pour Depression;
聚丙烯酸酯类柴油降凝剂的合成与降凝机理研究
11.
Synthesis of Tetradecyl Methacrylate Ester-Hexadecene Copolymer as Pour Point Depressant of Base Oil
α-甲基丙烯酸十四酯-十六烯降凝剂的合成及其降凝效果
12.
Preparation and Effect of Fatty Acid Isopropyl Ester Used as Pour Point Depressant of Bio-diesel
生物柴油降凝剂脂肪酸异丙酯的制备及降凝效果的研究
13.
Study on Preparing, Evaluating Capability and Exploring Mechanism of the Pour Point Depressants and Viscosity Reducers in Crude Olis;
原油降凝降粘剂的研制、性能评价及机理研究
14.
Research and Application of Reducing Condensate and Preventing Wax Recovery and Cold Transportation Techniques of High Freezing Point Oil;
高凝油防蜡降凝开采及冷输技术研究与应用
15.
freezing point depression
凝冻点（冰点）降低
16.
Concret was raised by a hoist.
混凝土由升降机提升。
17.
To cause(water vapor)to condense and fall from the air as rain, snow, sleet, or hail.
使凝结而下降使（水蒸汽）凝结形成雨、雪、雨夹雪或冰雹从空中降下
18.
Gelation and rheology of degraded xanthan gum with degraded guar gum
降解黄原胶与降解瓜胶凝胶体系的流变性研究