致密英语怎么说
Clouds appear in silhouette as the sunlight is reddened by dust in the dense lower atmosphere.
The supernova left behind a dense central core 12.5 miles wide that was first spotted in 1999 by NASA's Chandra X-ray Observatory.
T-type contain spherical and large granular vesicles, and dense body was seen beneath the post synaptic membrane.
At such temperatures, the powders react internally to remove porosity and fully dense articles can be obtained.
The results show that the films with dense and amorphous structure and lower grain boundary resistance were deposited at room temperature.
This material retains the top or outer membrane of the hide, which contains dense, tight fibres that are water-resistant and supportive.
The structure of pastilles was more compact and the pastille purification rate was slower at lower solidification temperature, however the yield of pastilles was higher.
The densification effects of upsetting and repressing are compared, and a technology design principle for closed die forging is suggested .
Igneous and metamorphic rocks are more compact, commonly crystalline, and rarely contain spaces between grains.