联合作用的

By means of the non-linear finite element analysis,the defect-free tee under bending moment was researched in this paper.

本文采用有限元分析的方法，在对纯弯矩作用下无缺陷三通进行研究的基础上，详细地研究了单一弯矩及不同比例内压弯矩联合作用时底部减薄缺陷对三通塑性极限载荷的影响。

Nano-Fe_3O_4 can induce DNA single-strand breaks without significancy and can not induce micronuclei formation and percentage of apoptosis. Nano-Fe_3O_4 can aggravate the effect of CdCl2 on DNA single-strand breaks and chromosome damage in HepG2 cells. They showed synergistic effects on DNA single-strand breaks after the data were statistic analyzed.

结果发现CdCl2能引起DNA断裂损伤、微核率的增加和细胞凋亡率的增加；nano-Fe_3O_4能引起DNA断裂损伤增加，但无显著意义，未引起微核率和细胞凋亡率的增加；nano-Fe_3O_4能加重CdCl2的对细胞DNA断裂损伤和染色体损伤，且二者联合作用对DNA断裂损伤的结果经统计分析认为有协同作用。

These results suggest that ethanol be the major factor in dysfunction of brain development whereas acetaldehyde plays critical roles in other organ teratogenesis.

上述结果提示FAS中的脑发育异常是乙醇独立作用的结果，乙醛则引起FAS中的辅助畸形。关键词醇，乙乙醛胚胎发育胎儿酒精综合征联合作用

Intravenous propofol combined with lornoxicam is an optimal strategy for painless artificial abortion for the reliable anesthetic and analgetic effects and light cardiovascular and respiratory depressions.

丙泊酚复合氯诺昔康用于无痛人工流产麻醉效果可靠，加强镇痛作用的同时未见加深丙泊酚的呼吸、循环抑制作用，为一种价优效好的联合用药方法。

In contrast to fungicidal activity of PEI alone, larger sized PEI resulted in a higher synergistic effect when combining with the conventional antimicrobial agents.

与单独作用的PEI相比，分子量较大的PEI与常规药物联合使用时可产生较强的协同作用。

To understand the toxicity mechanisms of mixed heavy metals on aquatic plant,indicators of algea growth rate,content of reduced glutathione,activities of glutathione S-transferase and glutathione peroxidase of green algae, Scenedesmus quadricauda were measured to analyze the individual and joint toxic effects of lead and mercury.

为进一步了解重金属复合污染对水生植物产生毒害作用的机制，以单细胞藻类生长及细胞内还原型谷胱甘肽含量、谷胱甘肽-S-转移酶和谷胱甘肽过氧化物酶活性为指标，对铅和汞单一及联合胁迫对四尾栅藻的毒性作用进行了研究。

Objective To study the effects of Na+-H+ exchange inhibition and Na+ channel blocker on myocardial ischemia/reperfusion injury, the suitable concentration, the symphysial effects and as well as the mechanism. Methods the isolated perfused working heart models of SD-rats were randomly dilated into 3 experiment groups.

目的 探讨Na+-H+交换抑制剂和Na+通道阻滞剂对心肌缺血／再灌注损伤的保护效果，研究其药物的适宜浓度、联合作用效果，并探讨其作用机制。

After culture on coverslips and bovine cortical bone slices for 1, 3, 5, and 7 days, morphologic features, TRAP staining and bone absorptive lacunae were observed to evaluate osteoclast cells.

结果显示，当培养细胞在RANKL和M-CSF联合作用下，TRAP阳性染色的单核和多核破骨细胞可在3天内迅速形成，骨片吸收实验显示骨片上出现典型的骨吸收征象；在M-CSF(50ng/ml)协同作用下，RANKL呈剂量依赖型诱导TRAP阳性破骨细胞生成。

As many studies have proved ,total glucosides of paeony and methotrexate can potentially prevent or limit the progression of rheumatoid arthritis.

在体外实验中，甲氨蝶呤和白芍总苷单独或联合作用均可显著抑制兔佐剂性关节炎滑膜细胞的增殖，这可能是甲氨蝶呤和白芍总苷发挥对类风湿关节炎治疗作用的重要机制之一。

The research indicates that it is necessary to consider the multi-dimensional seismic excitations in the anti-seismic analysis of large span cable-stayed bridges.

由于地震作用的空间效应，在进行大跨斜拉桥的抗震设计时，必须充分考虑多维地震的联合作用。

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。