查询词典 thenardite

Moreover, the uniaxial compressive deformation and damage of thenardite are different from other rocks during four deformation phases.

在单轴压缩变形破坏过程中，具有与普通岩石试件不同的四阶段性特征。

Experiments illustrate that the permeability is the function of solution time and osmotic pressure of calcium thenardite salt rock.

在围压为2.0MPa、初始渗透压为1.0MPa的溶解渗透作用下，获得不同溶解渗透时间时渗透率与渗透压的关系。

Through the testing and analysis, it is found that thenardite salt rock is a kind of soft rock, the strength of which is low and the deformation is distinct.

通过试验，发现无水芒硝岩盐是一种软岩，强度较低，变形较大。

Testing study is made on the basic mechanical property of thenardite salt rock, which includes uniaxial compressive, indirect tensile and angle changed shear tests.

针对岩盐这一特殊性质的岩石，进行了基本的力学特性试验，包括单轴压缩、间接拉伸及变角剪切。

Na2SO4:Tm3+ phosphors were prepared by heating pure natural thenardite with TmF3 at 900℃ for 20 min in air.

在空气中900℃温度下，将纯天然无水芒硝(Na2SO4)和TmF3的混合粉末加热20分钟，制备了Na2SO4：Tm3+发光材料。

Meanwhile, the three-dimensional mechanical characteristics of calcium thenardite salt rock take great changes after a period of solution pervasion actions.

由于溶解渗透使得矿物组成及其结构的变化，钙芒硝盐岩在溶解渗透前后三轴力学特性差异也很大，在2.0MPa围压的作用条件下，溶解渗透49h之后，钙芒硝盐岩的强度由未溶解渗透时的46.53MPa，降低为溶解渗透后的11.42MPa：与此同时，弹性模量也由43.700MPa降低为0.834MPa。

Thus the calcium thenardite becomes penetrable porous medium, holding the pervasion and mechanical characteristics that are called solution pervasion and mechanical characteristics, respectively.

由于矿物组分溶解特性的差异，在一定渗透压力作用下，钙芒硝盐岩体内会产生溶解渗透交互促进作用，从而由低渗透介质变为高渗透的多孔介质，其渗透及力学特性受其矿物组分硫酸钠溶解程度的影响极大，这种特性称之为溶解渗透力学特性。

Sodium sulfate saturated bittern was obtained after well drilling water-soluble method in Huai ′ an,Jiangsu.By solarization salt-making process,it can produces massive salty gypsum (CaSO4·2H2O) and thenardite (Na2SO4),but its comprehensive utilization value is not high.

江苏省淮安地区的岩盐资源可得到硫酸钠型次饱和卤水，对其进行日晒制盐时产生大量的盐石膏（ CaSO4·2H2O ）和无水芒硝（ Na2SO4），综合利用价值不高。

It was found that halite was closely cemented with soil particles, thenardite (Na_2SO_4) was transformed from mirabilite (NasSO_4·VlOH_2O) by dehydration, and the glanberite [Na_2Ca (SO_4)_2] was formed by calcium sulfate and sodium sulfate. These salt crystals separated were clear, without any mixture.

扫描电子显微镜的照片，展示出某些盐类结晶的自然特征，它们是：与土粒胶结紧密的石盐、由芒硝(Na_2SO_4·10H_2O)脱水转变成的无水芒硝(Na_2SO_4)、或由硫酸钠、硫酸钙形成的复盐——钙芒硝Na_2Ca(SO_4)_2。

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。