porous单词什么意思_porous单词解释 porous的反义词porous的例句

形容词能穿透的，能渗透的; 有毛孔或气孔的; 漏洞多的; 易穿过的

1. 多孔：科学家指出,骨骼的矿物密度对妇女的健康是十分重要的,当妇女年青时,她们的骨骼密度会增加,达到顶点,但当她们的年龄增加,她们的骨骼会变得薄弱、多孔(porous)和容易骨折.

2. 多孔状：而一般在应用上最常使用的胶原蛋白型态可为纤维状(fibrillar)、管状(tublar)、多孔状(porous)、薄膜(membrane)、海绵状(sponge)及注射剂(injectables). 进一步简述各种型态胶原蛋白的制法,如:多孔性胶原蛋白海绵为胶原蛋白在酸中膨润(swollen),

3. 多孔性的：因此,在自动切割基板背面材料中所介绍的好处,例如多孔性的(porous)碳化矽比矽晶有热传导的优势,只会改善射频功率元件在最大操作功率、操作温度、以及可靠度等表现,这些益处将帮助缩短用成本效益的方法把元件制作在碳化矽上的差距.

4. 多孔的：porosity 孔隙率,孔隙度 | porous 多孔的 | porphin 卟吩

1. 多孔的；能渗透的
Something that is porous has many small holes in it, which water and air can pass through.

e.g. The local limestone is very porous.
当地石灰岩渗透性很强。

2. 多漏洞的；松懈的
If something such as a defence or a barrier is porous, it can be penetrated or crossed easily.

e.g. Mr Balaguer is deploying more soldiers along his country's porous border with Haiti...
巴拉格尔先生正向本国和海地之间驻守不严的边界部署更多的士兵。
e.g. Once a tough defensive team, the Saints now have the most porous defence in the league.
圣徒队一度防御能力很强，现在却成了联盟里防守漏洞最多的队伍。

adj

1. full of pores or vessels or holes

Synonym: poriferous

2. allowing passage in and out

e.g. our unfenced and largely unpoliced border inevitably has been very porous

Synonym: holey

3. able to absorb fluids

e.g. the partly porous walls of our digestive system
compacting the soil to make it less porous