联合作用

We further evaluated the synergistic cytotoxicity of TRAIL in combination with actinomycin D, cisplatin and paclitaxel in A549 cell lines in vitro and in vivo.

本实验选择了人肺腺癌A549细胞瘤株作为我们实验研究的对象，通过TRAIL对人肺腺癌A549细胞诱导凋亡研究，在A549的荷瘤裸鼠的动物模型上研究了其体内的抗肿瘤活性，并进一步研究了TRAIL与化疗药物放线菌素D(actinomycin D，Act D)、紫杉醇和顺铂(cisplatin，CDDP)的联合作用对人肺腺癌A549细胞的体外协同抗肿瘤活性，通过化疗药物协同增强TRAIL抗肿瘤活性作用机制的初步研究，为降低临床化疗药的用药量，减轻其对机体的不良反应提供一定的理论基础。

In the first part,we use adjoint operator method and matrixrepresentation method to compute normal forms of higher order for nonlinear dynamicalsystems with Z2—symmetry and Z2—asymmetry.

在第二部分里，利用多尺度法、规范形理论、普适开折理论、Melnikov方法和Petrov方法分别研究了参数激励作用下非线性振子、参数激励与强迫激励联合作用下非线性振子的局部分岔、余维2退化分岔、余维3退化分岔和全局分岔。

Objective To investigate the effect of sodium arsenite combined with cigarette smoke solution on expression of Bcl-2 and Bax in rat lymphocytes and study their interaction.

目的 研究亚砷酸钠和香烟烟气溶液联合作用对凋亡相关基因Bcl-2和Bax表达的影响，并探讨它们对这2种基因表达的影响是否存在交互作用。

Combined effects of BaP and TBT to antioxidant system were complicated, and antagonistic interactions were dominating.

BaP和TBT对抗氧化体系指标产生了复杂的联合作用结果，主要表现为拮抗作用。

Methods According to 2×2 factorial design, rat lymphocytes were divided into 4 groups: sodium arsenite treated group, cigarette smoke solution treated group, sodium arsenite and cigarette smoke solution treated group and control group.

按照2×2析因设计将大鼠淋巴细胞分为4组：亚砷酸钠单独作用组、香烟烟气溶液单独作用组、两者联合作用组和对照组。

Corpus vertebrae and arcus vertebrae were modeled using eight-noded brick elements. Using the material properties from literature, the 2885-finite element model was exercised under different corrective loads such as forces of distraction, compression and rotation, etc.

分别研究纵向撑开力、横向矫形力及旋转力、压缩力的作用，并进行各类矫形力单独作用及联合作用时的矫形效果比较，同时对三维有限元法在脊柱畸形矫形中的应用价值作相关分析。

ECOD activity was induced by BaP, TBT or their mixture at high concentrations after 50 days exposure, and it is advisable to use ECOD activity as a biomarker to assess severe PAHs or TBT pollution. UDPGT was analyzed as phase II enzyme.

ECOD活性在BaP、TBT或者二者的联合作用下主要表现出被诱导效应，也能反映出高浓度的BaP和TBT联合污染情况，可以作为高污染环境中的生物标志物参考指标。

The plastic go down the hopper smoothly and is gripped by the thread of the screw. It is forced to go toward the direction of the gear end along with the rotation of the screw. A mechanical transferring process is formed. During the running of the plastic from the feed port to gear end, a high pressure is formed in the process of plastic curing due to the gradual decreasing of the thread depth and the resistance of filter gauze, splitter plate and gear end. The high pressure helps to press the raw material and improve its heat conductivity performance and the quick melting of the plastic, at the same time, the gradual increasing pressure can help the gas which is among material particles exhausted from the air holes.

在压力升高的同时，塑料一方面被外部加热，另一方面塑料本身在压缩、剪切、搅拌的运动过程中，由于内磨擦力也产生了大量的热，在外力和内力的联合作用下，塑料温度逐渐增高，其物理状态也经历了玻璃态--高弹态--粘流态的变化，一般地说来，在加料段中主要是玻璃态，在螺杆螺纹逐渐减少的中间部分压缩段中，物料主要处于高弹状态，同时也逐渐的熔融，而物料到压缩段后部和化段作用处于粘流态了，这时我们称塑料已完全塑化了，由螺杆推力作用将塑化的塑料定压定量的从机头中挤出。

The results indicate that the spalling behavior of oxide scale is the result of the inner and outer stress together,during rolling,the oxide scale cracks under the growth stress and thermal stress,at the same time the oxide scale also mainly undergoes alternative shearing stress in the rolling zone,the oxide scale spalls,then the reason of stripspalling is also analyzed.

结果表明：氧化膜剥落过程是内外应力联合作用的结果，轧制过程中氧化膜在长大应力和热应力作用下开裂，在轧制区内氧化膜还因受沿轧辊圆周方向的交变剪切应力作用而剥落。

In the development of stress theory, transactional model has become the dominant one; on the other hand, it has been an important trend to assess the role of multiple personality variables in stress process.

在压力理论发展中，交互作用模型已经成为占主导地位的压力理论，另一方面，探讨多人格变量的共同作用已经成为压力研究的一个重要趋势，因而在交互作用模型内探讨多种人格变量的联合作用在压力研究中具有重要的理论意义和实际意义。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。