查询词典 andesite

It is summarized and analyzed the strength characteristic of andesite and the principium of destroying rock of roller bit,take andesite for example.

以安山岩为例，总结和分析了安山岩的强度特性以及组合牙轮钻头的破岩机理。

Igneous rock produced by eruption and solidified on or near the earth's surface; rhyolite or andesite or basalt.

火成岩产生于火山喷发和在地表或接近地表的地方凝固；流纹岩或安山岩或玄武岩的。

6 The 3rd-order sequence have been identified in early Cretaceous, the position of sequence is erected on 2 sets andesite.

3将下白垩统划分为6个三级层序，指出本区两层安山岩的层序位置。

Saint Helens seemed at the time of the 1980 eruption, it was actually a relatively small eruption compared to other Andesite volcanoes such as Mt.

圣海伦斯似乎在当时的1980年喷发，它实际上是一个相对小的喷发较之其他安山岩火山如山。

Photo : Ruapehu, the tallest mountain on the North Island, is a massive andesite stratovolcano.

图片：ruapehu，最高山上的北岛，是一个庞大安山岩普林尼。

The andesite lava (114Ma) and quartz porphyry (94Ma) are of Early Cretaceous age.

安山岩（114Ma）和石英斑岩（94Ma）则是早白垩世火山活动的结果。

By the experimental study about the effect of a circulate loading on the deformation and the Young's model of Sanjome andesite at the distinct strain rate in a low stress state, the viscoelasticity of Sanjome andesite in a low stress state is researched by means of the effect of the circulate loading on the deformation of rocks.

通过低应力水平下不同应变速率时循环加载次数对三城目安山岩的变形及其杨氏模量影响的实验研究，从循环加载次数对岩石变形特性影响这一角度探讨了低应力水平下三城目安山岩的粘弹性特性。

The lava includes sub-alkali and alkali series. The former includes picrite-basalt, basalt, basaltic andesite, andesite, dacite and rhylite etc; the latter includes tephrite, trachybasalt, basaltic trachyandesite, trachyandesite, trachyte and pantellerite etc.

其中熔岩类有亚碱性系列和碱性系列，前者包括苦橄玄武岩、玄武岩、玄武安山岩、安山岩、英安岩、流纹岩等，后者有碱玄岩、粗面玄武岩、玄武粗安岩、粗安岩、粗面岩、碱硫岩等。

These subvolcanics, in which basalt, basaltic andesite and andesite are dominant, are petrochemically of calc alkaline affinity of subalkaline series and sodic type, and tend to have moderate low total REE, being LREE enriched.

岩石化学上属亚碱性系列、钙碱性火山岩系、钠质类型；稀土总量中低，属轻稀土富集型，稀土分布模式为右倾平滑曲线或略有正、负铕异常；过渡族元素球粒陨石标准化曲线形态呈&W&型，锶初始值为 0 。70 5398，反映物质来源较深。

The tuffaceous volcanic reservoir s of Xing'anling group in Hailaer Basin, Daqing Oilfield, includes andesite-rhyolite tuffaceous, andesite tuffaceous and trachy-rhyolite tuffaceous volcanic rocks.

针对这些特点，通过岩石水理特性实验和岩石力学特征研究，提出了以下解决措施：①凝灰质火山岩储层粘土含量高时，应提高压裂液的防膨胀性能，大排量施工，增加裂缝净压力；②碱性和偏碱性凝灰质储层，应研究使用低滤失压裂液，降低滤失量，同时提高压裂液的防膨胀性能；③凝灰质储层塑性较强时，应尽量提高施工排量。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。