perthite

By employing microfiltration membrane,this research tried to illustrate the contributions of these two mechanisms to dissolution of microperthite.

利用微孔滤膜进行了一系列实验,研究了多粘芽孢杆菌对微纹长石溶解的影响。

The perthitic feldspars described in this study are in granites of Zhejiang Province in which the perthite textures appear to have formed as a result of a specific sequences of metasomatic events at the deuteric stage of crystallization and in a chemical environment in which K-metasomatism was enrichment.

碱性长石占岩石组成的绝大部分,包括微斜长石和微条纹长石。

Microperthite is known to occur in the uppermost 1,000 feet of the Upper Zone, but the amount is small.

微条纹长石见于上岩带顶部的1000尺范围内，但含量不多。

carbide rectangular threading insert for petroleum pipe

石油管螺纹硬质合金长方形刀片

Sub-critical crack growth length of shear (Mode Ⅱ) fracture of rock

岩石剪切亚临界裂纹扩展长度的研究

A long, wavy strip of a different shade or color, as in wood or marble, or as mold in cheese.

纹理；纹路；条纹不同色度或颜色的波浪形长条，如在木材或大理石中，或在干酪中形成的纹理

light-colored and fine-grained granitic rock consisting chiefly of quartz and feldspars.

由石英和长石构成的一种纹理细密的淡色花岗岩类岩石。

A gray, fine - grained volcanic rock, chiefly plagioclase and feldspar.

安山岩一种灰色的，纹理细密的火山岩，主要是斜长石和似长石

Synthesis of Micron Grade Length Chrysotile Nanotube by Hydrothermal Method

微米级长度纤蛇纹石纳米管的水热合成

Moderately weathered rock showed more intense bleaching and fissuring in the feldspars.

中等风化岩石则是指长石有更为强烈的变白现象和裂纹现象。

Any of various dark, granite - textured, crystalline rocks rich in plagioclase and having little quartz.

闪长岩一种黑色花岗岩的纹理的结晶质火岩石，富有斜长石，含有少量石英

A fine-grained, light-colored igneous rock, composed chiefly of feldspar and quartz.

霏细石一种纹理细密且颜色浅的主要由长石和石英构成的火成岩石

herringbone dressing

人字纹修琢 -石面

A dark - gray to black, fine - textured igneous rock composed mainly of feldspar and pyroxene and used for monuments and as crushed stone.

辉绿岩一种贝岩，颜色深灰至黑，带有细微网纹，主要由长石和辉石构成，用作纪念碑或碎石块

Having a texture composed of lath-shaped plagioclase crystals in a matrix of pyroxene crystals.

有斜长石结晶结构的在嵌有化石水晶基质的晶体中，由条形纹条石组成的结构的

A fine - grained, light - colored granitic rock consisting primarily of orthoclase and quartz.

细晶岩主要由正长石和石英构成的一种纹理细密的淡色花岗岩类岩石

A mottling or streaking that resembles marble.

一种类似于大理石纹的斑纹或条纹

The oxygen and carbon isotopic signatures of laminations in lacustrine stromatolites and palaeoenvironmental significances of growth rhythmites

湖相叠层石纹层的碳氧同位素特征及其生长节律的古环境意义

Characteristics of giant annulus stripe K-feldspar phenocryst of Gangtangcuo granitic pluton in central Qiangtang, northern Tibet, China

藏北羌塘中部冈塘错花岗岩体中环带条纹钾长石巨斑晶的特征

Any of various green rocks, such as serpentine.

蛇纹石一种绿色岩石，如蛇纹大理岩