查询词典 under pressure

M-Al2O3 catalyst for vapour-phase hydrogenation of citronellal to citronellol under normal pressure have been studied in a continuous flow and fixed-bed micro reactor.

采用连续流动微型固定床反应装置，研究了M催化剂对香茅醛在常压下气相加氢制香茅醇的反应。

Natural gas hydrate , known also as flammable ice, is a clathrate compound formed by natural gas and water under conditions of low temperature and high pressure.

天然气水合物是天然气与水在低温高压条件下形成的笼形物，亦称可燃冰。

Gas hydrates are defined as the crystalline solid, or clathrate hydrates, which are formed by some types of low mass molecular gases, such as methane, carbon dioxide, and hydronitrogen et al, with water under relatively high pressure and low temperature conditions.

天然气水合物是一些具有相对较低分子质量的气体如甲烷，二氧化碳、氮气等在一定温度和压力条件下与水形成的内含笼形孔隙的冰状晶体。

An empirical pore pressure model of soft clay under cyclic loading was established.

建立了循环荷载作用下软黏土地基中孔压发展的经验模型，通过回归分析得到了模型计算参数。

An empirical pore pressure model of soft clay under cyclic loading is established.

飞机荷载作用引起场道软土地基中产生永久变形，是场道工程普遍关注的问题。

Before assembling the ball valve seat sealing surface and be equipped with decent research, and then placed in the closed position the sphere, the installation of left valve, adjusting the gasket, tighten the screws, static pressure irrigation does not leak, this valve can be guaranteed under the seal test seal.

装配前阀座密封面与球体面应配研，然后将球体置于关闭位置，安装左阀体，调整垫片，拧紧螺钉，静压灌水不漏，则此阀在密封试验下即可保证密封。

The result showed that intensity of CMG decreased evidently,and its hardness,springiness and chewiness increased significantly under the pressure of 200 MPa or above.

研究结果表明：200 MPa以上的高静压可导致鸡肉凝胶亮度的显著下降、以及凝胶硬度、弹性和咀嚼性的显著增加；300 MPa以上的高静压可引起鸡肉凝胶pH值和黏结性的显著升高P。

Coalification is essentially a process of the change of physicochemical structure and physicochemical properties under the influence of temperature, pressure and time.

煤化作用实质上是在温度压力及时间等因素的作用下，煤的物理化学结构的变化及由此导致的煤的物理化学性质的变化，因此，了解煤化作用过程中物理化学结构的变化是深入理解煤化作用机理及过程的关键。

His health collapsed under the pressure of work.

他的身体被工作压垮了。

In this paper, collapse characteristics of intact loess from three typical loess areas under different moisture condition are studied,and the principles of loess collapsibility influenced by water content,dry density as well as pressure and behaviors of these in different loess are approached respectively.

对 3个典型黄土地区的原状黄土样在不同湿度状态下的湿陷特性进行了研究，探讨了含水率、干密度、压力对黄土湿陷性的影响规律，着重从结构性的角度解释了不同地区间黄土湿陷特性的差异。

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。