介质

• A current is passed through earth materials not containing metallic minerals .
  电流在不含金属矿物的地层介质内经过。
• Stars are born from a kind of primal soup known as the interstellar medium .
  恒星是由一种称为星际介质的“原汤”形成的。
• In the case of uranium the sample location or medium is not as critical .
  分析铀时对取样点位置或介质的要求就不那么严格了。
• The pore velocity is the velocity with which a tracer moves through a porous medium .
  孔隙速度是示踪元素穿过孔隙介质的速度。
• In the case of dielectric breakdown, a different type of acceleration occurs .
  在介质击穿的情况下，出现了一种不同类型的加速。
• The investigation was extended to the study of a three-dimensional granular medium .
  将这项研究推广到对三维颗粒状介质的考察。
• Histamine was considered the primary mediator of inflammatory vascular responses .
  人们考虑组织胺为血管炎症性反应的主要介质。
• In practice this is done on an enlarged photomicrograph of the porous medium .
  实际上这是在一张放大的多孔介质显微照片上进行的。
• Then the magnetic connection between the cloud and the surrounding medium will be broken .
  其时云和周围介质间的磁联系就终止了。
• They imagined the existence of a physical medium-the ether-filling all of space .
  他们想象存在一种充满整个空间的物理介质--以太。