BHA, or beta hydroxy acid, is a form of salicylic acid and is used in some topical exfoliants to reverse signs of aging. 或者betahydroxyacid,是水杨酸的一种,被用在一些局部去角质产品中来扭转老化迹象。
BHA finite element model 底部钻具组合有限元模式
Pendulum assembly is a kind of BHA for hole straightening, which is applied widely in drilling practice. 钟摆钻具是一种常用的纠斜钻具组合,在钻井中应用极为广泛。
Methods Its antioxidative effect on edible fats was compared with that of BHA and PG. 方法将芸香甙-PVP共沉淀物与BHA、PG在食用油脂中对比抗氧化作用。
The results show that by designing the structure of the slide-steering BHA carefully, an appropriate steering force can be gained. 结果表明,较好地设计钻具组合的结构,可以得到令人满意的导向力。
Pick up BHA and run to seafloor. 将下部钻具下到海底。
Quantitative Detection of Genetically Modified Roundup-ready Canola in Imported Canadian Canola Synergistic anti-oxidative effects of rapeseed polyphenol and BHA on rapeseed oil 油菜籽中转基因抗草甘膦油菜籽的定量检测菜籽多酚与BHA在菜籽油中的协同抗氧化作用
Three-dimensional bottomhole assembly model BHA directional behavior 三维井底钻具组合模式底部钻具组合定向特性
A complete and balanced nutritional supplement. No ethoxyquin, BHA or BHT. 一种完美无缺和平衡的天然供给品。不含弓氧基奎宁、HA及BHT。
In this paper, the UHMWPE/ BHA artifical joint composite was prepared by hot pressed method using the raw materials of UHMWPE and BHA powder. 本文选用超高分子聚乙烯(UHMWPE)和牛骨粉(BHA)为原料,采用烧结压制工艺制备出UHMWPE/BHA复合人工关节材料。
Mechanical Analysis and Design of Coring BHA in Long Horizontal Segment 水平段大段取心钻具力学分析与设计
Synergistic anti-oxidative effects of rapeseed polyphenol and BHA on rapeseed oil 菜籽多酚与BHA在菜籽油中的协同抗氧化作用
Correlation study on drilling weight on bit ( WOB) fluctuation rules of pendulum assembly and unbalanced assembly was carried out by using simulation device for bottom hole assembly ( BHA). 利用底部钻柱动力学研究试验装置对钟摆钻具与偏轴钻具的钻压波动规律进行了对比研究。
A stabilizer on the BHA positioned opposite the casing shoe reduces lateral motion of the assembly inside the casing. 钻具组合上有扶正器可使套管鞋反向定位以减少套管内钻具组合的侧向移动。
Electrochemical determination of antioxidants: TBHQ 、 BHA and BHT in vegetable oils Key compounds under review included vitamins, antioxidants, alpha-hydroxyl acids, moisturizers, pentapeptides and botanicals. 电分析法测定植物油中抗氧化剂研究主要成分包括:维生素、抗氧化剂、果酸、湿润剂、胸腺五肽以及植物制剂。
Analysis of BHA mechanical behavior of window cutting of herringbone multilateral wells 鱼骨型分支井开窗下部钻具力学性能分析
Stabilizer is an important component in BHA of hole deviation control. 稳定器是井斜控制井底钻具组合中的重要组件。
While pulling the BHA through the rotary table, the Driller must stop when stabilisers reach the table and have the Floormen remove the bushings. 当起钻到BHA,扶正器到达钻盘面时,司钻必须刹住刹把,让钻工移开方补心。
Discuss of Effectiveness Lose Inducement and Damage to BHA in Wet H_2S Environment 钻具失效诱因及湿H2S环境危害探讨
Accurate prediction of BHA deflecting capacity is very important for precise well trajectory control. 预测下部钻具组合(BHA)的造斜能力对准确控制井眼轨迹十分重要。
This paper describes how to use finite element and clearance element methods to establish slim hole BHA dual nonlinear mechanics analysis model and theoretical analysis method. 通过试验研究及力学分析,采用有限元法、间隙元法建立大庆油田小眼井下部钻具双重非线性力学分析模型和理论分析方法。
A method for analysis of butyl hydroxy anisole ( BHA, antioxidant) in simvastatin had been established by HPLC. 建立了测定辛伐他汀中抗氧化剂叔丁基羟基茴香醚(BHA)含量的高效液相色谱方法。
As application, side forces at bit are calculated and analyzed for some typical BHA and drilling parameters. 最后,应用有限元程序的计算结果,分析钻柱在钻头处的侧向力和各种钻井参数的关系。
In soybean oil, the antioxidation of water-soluble part was stronger than that of BHA and V. E. 大豆油中,水溶性部分显示出比BHA和V.E更强的抗氧化能力;
The basic assumptions, equations and boundary conditions for bottom hole assembly ( BHA) analysis were discussed. 讨论了下部钻具组合分析的基本假设、基本方程和相应的边界条件。
It discussed problems about wellbore structure, BHA, bit selection, drilling parameters and so on. 探讨了小眼井井身结构、钻具组合、钻头选型、钻井参数等问题。
The results showed that BHA could increase the plant height and biomass obviously. 结果表明,提前施入BHA能明显提高番茄的株高、生物量;
Byproduct hydrochloric acid ( BHA) in chlorobenzene production was treated by adsorption process with macroporous resin. 用大孔吸附树脂对氯化苯生产中的副产盐酸进行吸附处理。
The thermal stability and hydrophilicity of the membranes were enhanced and the free volume characteristics were improved, simultaneously. 膜的热稳定性和亲水性也由于BHA颗粒的掺入而明显提高,自由体积特性得到改善。