| 1. | This membrane is semi-permeable .
这层膜是半渗透性的。 |
| 2. | The permeability of a soil is important for calculations of underground flow .
土的渗透性对于地下液流的计算很为重要。 |
| 3. | It seems likely that the drug resistance is caused by permeability changes rather than enzyme deficiency .
抗药性似乎是由渗透性改变而不是酶缺损而引起的。 |
| 4. | Within the rock which forms the highly permeable reservoir convection currents of hot water or steam occur .
在形成高渗透性热储的岩体内，存在水或蒸汽的对流运动。 |
| 5. | Sift the anthers onto unglazed, permeable paper, such as newspaper or paper toweling, for drying .
将花药筛到无光的、具渗透性的纸上，如报纸或卫生纸，以便花药干燥。 |
| 6. | The principal direction of small-scale movement is from a shale or clay to a sandstone or other permeable bed .
小范围运动主要从页岩或粘土岩向砂岩或其他渗透性地层中运动。 |
| 7. | The slightly porous nature of the surface of the oxide film allows it to be coloured with either organic or inorganic dye .
氧化膜表面具有轻微的渗透性，因而可以用有机或无机染料着色。 |
| 8. | The concept of this self-sealing process broadens the likelihood of cap rocks with low permeability occurring in volcanic areas .
自封密过程这一概念使得火山区也可能出现渗透性能很低的盖层。 |
| 9. | The most frequent reaction causing the self-sealing of rocks with high secondary permeability is argillization .
这种发生频率很高的、使次生渗透性能良好的岩体产生自封闭现象的反应就是泥岩化。 |
| 10. | Field soils often have bulk densities ranging from 1.0 to 1.4gcc; with commensurate porosities and infiltration characteristics .
田间土壤的容重常在1.0到1.4克立方厘米范围内，且具有均匀的孔隙度和渗透性。 |
