调节了的

Therefore, established a finite element Stable response model of a horizontal whole string and carried out t the safety varied frequency of gas well after researched the natural seriously transversal vibration and compressional vibration frequency range of tubing string with packer and packerless, so that it make the tubing string to avert the covibration frequency range of natural gas excited.

本文认为以某井高产量稳产时，天然气对油管柱的外激励为简谐激振，因此研究中建立某水平井全井段油管柱稳态响应的有限元力学模型，并获得了在无封隔器和有封隔器情况下的油管柱发生严重横振和纵振的频率范围，提出了天然气安全调节频率范围，使油管柱避开可能引起严重破坏的天然气激励频率区域。

The cholesterol and 4-(trans-4-alkyl cyclohexyl)benzoic acid derivatives have been connected with different length spacers give 40 new dimerliquid crystals.

通过间隔基和末端烷基链长短的调节合成了40种新的新型手性二介晶结构液晶化合物。

The ability of maintaining turgor pressure, osmotic adjustment,capable of preserving and endurance of water separation capability were increased under elevated CO_2 concentrations,whereas the resistance of water separation capability decreased.Theε~max increased in normal water condition of Acer truncatum under 720μmol·mol~(-1)CO_2,and cytoderm more hardness and less elasticity.But in circle 3,ε~ decreased in light and middle drought conditions and increased in serious drought condition.(5) The branch 0,branch 1 and branch 2 of hydraulic conductivity of 7 trees increased along elevated CO_2 concentration.

随着CO_2浓度的增加，RWC~0/RWC_s下降，Ψ~0π和Ψ~(100)π在循环1时先增加后下降，一直持续到循环3，高CO_2浓度下元宝枫维持膨压的能力增强，渗透调节和自身保护能力，以及忍耐脱水能力虽然增加，但是抗脱水能力却减弱了，不能同时兼得。720μmol·mol~(-1)CO_2元宝枫ε~在水分条件较好时增加，细胞壁较坚硬，弹性小，但是到循环3时，ε~在轻度干旱和中度干旱时下降，到后期水分严重胁迫时却升高。

Aiming at the disadvantage of mechanical press, this paper proposes a new slide driving structure and press control concept, in which the special positioning module control the position and speed of the slide, so that the slide motion can be discretionarily controlled, it makes the mechanical press produce a variety of workpieces of different technics and materials.

本文针对传统压力机的不足，提出了新的滑块驱动模式和压力机控制方案，并采用独立的定位模块对滑块的位置和速度进行控制，实现了滑块运动规律的任意调节，使机械压力机可适用于多种工艺和材质的加工。

In order to utilize the mapping channel of epicardial mapping system effectively,we present a new mapping method with feedback adjustment.

为了有效地利用心外膜标测系统的标测通道，提出了一种带反馈调节的标测方法。

Based on analysis of the current state of the flow pattern modeling abroad and at home, explains the meaning of the mathematical simulation of the flows in the valve.(2) Comparing flow simulation data of jet pump with its experimental one, the feasibility and reliability of FLUENT used for flow simulation are proved.(3) Based on the characteristic of valves, the fluid field analysis of specific ring-spray type flow-adjustable is finished. The valve structure is optimized to meet the need, which makes it have such advantages:(1)smaller vortex area and faintish vortex intensity, so the vibration of vortex is controlled effectively;(2)the pressure is distributed more equality, the transition area is larger.

论文的主要内容包括：(1)简述了阀门研究的现状与发展，在分析与总结国内外流体流动模拟研究的基础上，探讨开展阀门内水流运动数值模拟的意义；(2)对特定型号的射流泵进行了内部流场的数值模拟研究，并与实验数据相比较，验证了应用Fluent进行数值模拟的可行性和可靠性；(3)针对调流阀的特点，对特大口径环喷式流量调节阀进行流场计算，其设计指导思想如下： 1、控制旋涡，减小旋涡区，减小涡的强度； 2、控制压力分布，使阀体受力更均匀，改善局部应力状态，提高阀门使用的安全性； 3、最小绝对压力高于水的汽化压力，不产生汽蚀。

There might be an auto-regulating mechenism in the process of apoptosis of gast ric carcinoma cells.

这提示Fas可能参与了胃癌细胞生长的调节，胃癌细胞的凋亡存在自我调控机制。

We aim to screen and identify the key potential trans-factors during hemoglobin switch. We firstly analyzed differential expression of mRNAs in erythroid induction cultures of CD34+ cells derived from normal umbilical cord blood, adult bone marrow, and bone marrow of a heterocellular hereditary persistence of fetal hemoglobin patient. We identified ZF (HCF-binding transcription factor, Zhangfei) and SH3GLB1(SH3-domain GRB2-like endophilin B1) that had differential expression in the above three cultures. Furthermore, we confirmed the different expression of the above two genes by quantitative real-time PCR.

为鉴别影响珠蛋白基因表达和开关的新的重要调节因子，我们首先分析了人脐带血、正常成人骨髓和异细胞型胎儿血红蛋白持续存在综合症患者骨髓细胞红系诱导培养物中基因表达的差异，发现ZF(HCF-binding transcription factor，Zhangfei)和SH3GLB1（SH3-domain GRB2-like endophilin B1）在这三种不同来源的红细胞内具有显著的表达差异，并通过实时定量PCR方法验证了差异的真实性。

With the great progress in embryo engineering during the past decade, the maturing oocytes with high qualities and quantities are increasedly required.

然而由于目前对卵泡发生和发育的调节机制仍知之甚少，因此大大制约了利用卵泡体外培养和体外成熟技术生产成熟卵母细胞的成功率。

We investigated the jejunal mucosal capacity to autoregulateperfusion during nonpulsatile CPB (34° C) in 10 patientsundergoing elective cardiac surgery.

我们研究了10例行择期心脏手术的患者非搏动血流 C PB (34° C)期间空肠粘膜对灌注的自身调节功能。

It seems likely that Kraft will return with a better offer.

看起来卡夫要重新考虑一个更好的出价了。

But he'd rather burn off my feelers and watch me squirm.

可他却放任那个家伙对我为所欲为！