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1·The proportion of empty space in a rock is known as its porosity.

岩石中空隙的比例被称为孔隙度。

2·Sediment sorting and compaction influence permeability and porosity.

沉积物的分选和压实作用影响渗透率和孔隙度。

3·Extraction of water depends on two properties of the aquifer: porosity and permeability.

水的开采取决于含水层的两个性质：孔隙度和渗透性。

4·This pore space is known as porosity and is expressed as a percentage of the total rock volume.

这个孔隙空间被称为孔隙度，用岩石总体积的百分比表示。

5·The more poorly sorted or the more tightly compacted a sediment is, the lower its porosity and permeability.

沉积物分选越差或压实越紧，其孔隙度和渗透率就越低。

6·Porosity is important for water-storage capacity, but for water to flow through rocks, the pore spaces must be connected.

孔隙度对地层储水能力尤为重要，但要让水能够从岩石中流出，孔隙之间必须相互连通。

7·With their enormous size and weight, today's farm machines have significant downsides: they compact the soil, reducing porosity and killing beneficial life, meaning crops don't grow so well.

由于庞大的体积和重量，现在的农业机械有显著的缺点：它们会把土壤压实，降低土壤孔隙度，杀死有益的生命，这意味着农作物不会长得太好。

8·The study result was verified by porosity testing.

分析结论通过孔隙率检验得以证实。

9·Welding porosity is the main defect during laser welding.

焊接气孔是粉末冶金材料激光焊接的主要缺陷。

10·The mechanical compaction is the main cause of porosity loss.

压实作用是造成砂岩孔隙度降低的最主要因素。

(1)shrinkage porosity收缩气孔巢

(1)secondary porosity次生孔隙度

(1)apparent porosity显气孔率；虚表孔率

(1)soil porosity土壤孔隙度

(1)open porosity开孔孔隙度；开孔率

(1)gas porosity气孔；疏松度