imperviousness

The water absorption and impermeability of mortar has close correlation with pore structure.

砂浆的吸水性和不透水性与其孔结构密切相关,研究了不同品种的憎水剂和消泡剂种类和掺量对聚合物砂浆吸水率、软化系数、不透水性和孔结构的影响,结果表明,硬脂酸类憎水剂(C)-有机硅类消泡剂(B)与成品聚合物砂浆的配伍效果最好,砂浆的吸水率降低、不透水性和软化系数提高。

Karbate graphite

卡尔贝特不透性石墨

Method for impact testing of impermeable graphite materials

GB/T13465.4-1992不透性石墨材料冲击试验方法

General rules for test methods of mechanical properties of impermeable graphite materials

GB/T13465.1-1992不透性石墨材料力学性能试验方法总则

Test method for flexure strength of impermeable graphite materials

GB/T13465.2-1992不透性石墨材料抗弯强度试验方法

Test method for compressive strength of impermeable graphite materials

GB/T13465.3-1992不透性石墨材料抗压强度试验方法

the opacity of frosted glass

磨砂玻璃的不透明性.

Note: Air permeability and breathability are not synonymous.

注意：空气渗透性和透气性是两个不同的概念。

Depression may result in malnutrition, noncompliance and dialysis inadequacy, etc.

它可造成血透患者的顺应性下降、营养不良、透析不充分等。

The basis for membrane separations is the difference in permeability of a semiporous membrane to different molecular sizes.

膜分离技术的基础是不同大小的分子对半渗透膜渗透性不同。

Effects of Different Dialyzer on Renal Relative Factors about Osteodystrophy in Patients with Maintaining Hemodialysis;

不同透析膜对维持性血液透析患者肾性骨病相关因素的影响

You cannot apply data validation to cells in a PivotTable.

不能对透视表应用数据有效性检验。

Thickness of consistency;impenetrability.

致密度一致的程度，不可穿透性

He stressed character and expression rather than perspective and physical accuracy;

他强调性格与表现而不是透视与精确。

Research on the Deuterium Permeation Characteristic of Stainless Steel Coated with Al Barrier Film;

渗铝涂层不锈钢氘渗透特性实验研究

Scientific Philosophy Perspective on Godel s Incompleteness Theorems;

哥德尔不完备性定理的科学哲学透视

A nearly transparent, resilient glazed paper resistant to the passage of air and grease.

玻璃纸一种近乎透明的，有弹性的光滑料纸，不透气和抗油脂

examination of the inner structure of opaque objects using X rays or other penetrating radiation.

利用X光或者其他穿透性射线来检查不透明物体的内部结构。

Influences of Long-term of Different Dialysis Frequencies Per Week to the Patients with Maintenance Hemodialysis;

不同透析频率对维持性血液透析病人生存质量的中长期影响