查询词典 Under Pressure

The optimum reaction conditions were found finally. The results showed that the suitable conditions are under methanol solvent reaction temperature 40℃,the concentration of catalyzer TS-1 0.6%.,reaction time 60 minutes,propylene pressure 0.4Mpa under methanol solvent.Under Supercritical fluid system,the reaction temperature was 33.7℃(supercritical and near critical temperature),the reaction pressure was 7.58Mpa(near critical pressure and critical pressure range. propylene ), propylene pressure 0.65Mpa, reaction time 45min, cosolvent molality 4%.

而超临界体系下反(来源：4e56ABC论文网www.abclunwen.com)应温度适宜在近超临界和临界温度(33.7℃)以上，反应压力也是接近临界压力或者处于临界压力范围(7.58Mpa)，丙烯压力是0.65Mpa，反应时间45min，共溶剂甲醇摩尔浓度4%，在此反应条件下，反应的转化率98%，选择性96%，收率94%，与传统条件相比较，收率提高了20%左右。

The reliability of analysis result depends largely on the in-house experimental conditions. Unlike the previous analysis that only concerns the sole effect of permeable pressure, this article considers both permeable and confining pressure and deformation characteristics of concrete material under the interaction of them according to the real work state of construction, which may leads to the changing pattern of permeable rate as listed below: permeable rate always reaches its peak with the time process going on, than goes down and remains straight on some certain value; The PR will tend to decline while the confining pressure is increased, and the time taken before the peak will be extended as well; Under the constant permeable pressure and circularly changing confining pressure, the minus-exponential ascend and descend relationship could be applied between the PR and Time axes respectively with crannied and intact concrete samples, and the PR of crannied concrete is far more larger than that of intact concrete. The change pattern of concrete could also be mathematically analogized using the least square method.

室内的实验条件是研究成果可靠性的重要因素，而以往的研究都只考虑了渗透压单一作用，本文根据混凝土结构的实际工作状态，同时考虑了围压与渗透压共同作用下的混凝土材料的渗透性变化特征，得出了混凝土材料在围压作用与渗透压共同作用下的渗透率的变化规律：渗透率都是随时间推移先达到一个峰值，再降低并趋于平稳；渗透率会随围压的增大而减小，并且峰值的到达时间也会随之延长；在渗透压不变，围压升降循环的情况下，有裂缝、无裂缝混凝土的渗透率变化规律是随时间成负指数关系上升、下降，且有裂缝混凝土试件的渗透率远远高于无裂缝混凝土的渗透率，并对混凝土的变化规律运用最小二乘法进行数学拟合。

As the plastic region expansion on circle plate under extemal pressure is smaller than that under equal internal pressure, it can be qualitatively reckoned that the critical pressure of in-plane instability under external pressure is higher than that under internal pressure with the same axial displacement load.

由于外压增量导致环板内塑性区域扩展的范围小于等值内压的影响，因此可以定性的认为，在同样的轴向压缩量下，波纹管的平面失稳外压临界压力大于内压临界压力。

Based on the testing analysis of microcosmic digital image, there are smaller Fissions, higher density and even distribution under high confining pressure than under low one. Microcosmic damage mechanics of rock cracking under high confining pressure and hydraulic pressure is given. Reliable testing basis is offered to analyze further failure and stability of the noncircular cave surrounding rock under high confining pressure and high hydraulic pressure.

通过微观数字图像试验分析发现，高围压条件下大理岩断口裂纹长度小、密度大、分布相对均匀，给出高水压高围压作用下岩石破裂产生的微观损伤力学机理，为进一步分析高围压高内外水压条件下非圆形洞室围岩失稳破坏机理提供了可靠的试验依据。

There are basically four major factors that might take effect on the crystallization kinetics under pressure, including volume change, atomic diffusion, interface formation and deformation.

压力对非晶态固体晶化过程的影响的主要有四个方面：体积效应，原子扩散效应，界面形成效应和形变效应。

At home, the French president was under pressure to go even further in a nationalist direction from his main political opponents –"the postman and the housewife", otherwise known as Olivier Besancenot, a Trotskyite, and Marine Le Pen of the far-right National Front.

在国内，法国总统却被指摘为还不够民族主义，这指摘来自他的主要政敌——&邮差和主妇&，托洛茨基主义者奥利维耶·贝桑瑟诺和极右翼民族阵线的玛丽内·勒庞。

At home, the French president was under pressure to go even further in a nationalist direction from his main political opponents –"the postman and the housewife", otherwise known as Olivier Besancenot, a Trotskyite, and Marine Le Pen of the far-right National Front.

这位法国总统在国内受到主要政治对手——&邮递员和家庭主妇&的压力，要求其进一步走向民族主义。

Under pressure from the agency, the Greek authorities were dissuaded from building an aluminium plant near the site of the Delphic oracle and Egypt held off from building a highway near the Pyramids of Giza.

迫于该部门压力，希腊政府受到劝阻，放弃在德尔菲神谕遗址旁边建造炼铝产。埃及被阻止在吉萨金字塔附近建造公路。

Under pressure from the agency, the Greek authorities were dissuaded from building an aluminium plant near the site of the Delphic oracle and Egypt held off from building a highway near the Pyramids of Giza.

联合国教科文组织喜欢吹嘘仅靠暗示除名带来的警醒作用。迫于该部门压力，希腊政府受到劝阻，放弃在德尔菲神谕遗址旁边建造炼铝产。

The United States is coming under pressure over its Cuba policy at the annual meeting of the Organization of American States being held in Honduras.

在宏都拉斯举行的美国组织年度会议上，美国对待古巴的政策遭受了压力。

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。