1·The effective reservoir of deep basin gas must have densified before the mass generation and expulsion of hydrocarbons from source rock, so do the "sweet points".
深盆气的有效储集层必须在烃源岩大量生、排烃之前就致密化，“甜点”也应在烃源岩大量生、排烃之前形成。
2·Under a proper sintering, the complete densified and transparent silica tubes can be obtained.
在合适的烧结条件下，可得完全致密的透明石英管。
3·The paper is about how to obtain the densified structure of heavy-wall nodular iron castings under the condition of gravity foundry and to introduce the authors research in this area in detail.
针对日益开始清晰的厚壁球铁件凝固特性，提出了获得其致密组织的较为系统的工艺设计思想； 以作者主持完成的典型的生产实例验证了控制方法的有效性，并在此基础上讨论了控制方法的拓展途径。
4·The extremely densified region accounts for mainly to the interaction effect.
过致密区的形成是相互作用效应的主要原因。
5·The results indicated that the composites were densified primarily through liquid phase sintering.
结果表明，复合材料主要是通过液相烧结而得到致密化的。