查询词典 quartz

The research result indicates that the thermal conductivity of the Cement PO42.5 is slightly higher than that of the PO32.5 and the thermal conductivity of the borehole backfills increases when the sand size increases,and that contained quartz sand is higher than river sand.At the same time,the thermal conductivity of the borehole backfills increases firstly and then decreases and the consistency decreases when the bentonite content increases.

研究发现：PO42.5水泥的导热系数稍大于PO32.5的导热系数，回填材料导热系数随砂子粒径的增大而增大，骨料为石英砂的回填材料导热系数要明显大于骨料为河砂的导热系数；同时回填材料的导热系数随膨润土含量的增加先增加后减小，回填材料的流动性随膨润土含量的增加有所降低。

Accompanying the Jungar plate subdueted dewnwards along the northwest edge of Siberian eraton, the volatile-rich felsie biotite diorite batholiths and a lot of fracture-controlled quartz diorite vein intruded the are-back basin, Au preferently distributed within the disseminated magmatic sulfide during granitoid melt crystallization

阶段Ⅰ。华力西晚期伴随着准噶尔板块向北部西伯利亚板块的强烈俯冲，在额尔齐斯弧后盆地形成偏中性富含挥发份深源黑云英闪侵入岩及大量明显受构造控制的石英闪长岩脉，Au在岩浆结晶-分异演化过程优先在花岗岩中呈浸染状分布的岩浆碱化物中相对富集

Which has become a common impurity of quartz sand and pyrite nails, but also structural breccias (often as a "chicken blood" package, with hard texture and a soft) and late finePulse (mostly to the low hardness of stone or pyrophyllite open nature, its main impact there is beautiful).

其中常见的杂质有成为砂钉的石英和黄铁矿，也有构造角砾（常为&鸡血&包裹，质地有硬有软）和后期细脉（多为硬度不高的地开石质或叶蜡石质，其存在主要影响美观）。

There exist tuff with abundant organic materials at the bottom of P2-3β^1-1 and hydrothermal exhalation breccias between P2-3β^1-1 and Dachang quartz rock, which constitute main ore-containing space and ore-hosting rocks.

在该区，P2-3β^1-1底部富含有机质的凝灰岩，P2-3β^1-1与大厂石英岩之间的热液喷发角砾岩，都是最主要的赋矿部位和容矿岩石。

The ductile extension shearing between rock layers is the main structure action, which causes the plastic fludization and mylonization of rocks during the later period of late proterozoic era, and the brittle-ductile extension shearing is the main cause to form the breccias and quartz veins during Yenshan movement.

首次提出了金山韧性剪切带伸展—逆冲—伸展剪切的多阶段发展演化模式。晚元古代晚期的顺层韧性伸展剪切是形成金山地区岩石塑性流变和强烈糜棱岩化的主要构造作用，燕山运动期迭加的脆—韧性伸展剪切是形成该地区碎裂岩和石英脉的主要构造作用

Measurement system for crystal fiber loss has been set up, an idea that single mode quartz fiber acts as the coupler of crystal fiber incident light has been put forward. The propagation loss of the cladded crystal fiber is measured using this measurement system to be 14 times as low as that of the uncladded crystal fiber, and the transmission of low order modes has been realized in the cladded crystal fiber.

利用激光加热基座法生长出了不同直径、不同晶向的LiNbO〓和Nd：MgO：LiNbO〓单晶光纤；根据熔区质量守恒和热量守恒方程解析了生长速度、速度比和激光功率对晶纤内部显微缺陷和直径波动的影响，提出通过控制激光功率和速度比来维持熔区形状的稳定，以实现高品质晶纤的稳定生长。

We used a Mode l PS-1 PUF Sampler (Graseby GMW, Village of Cleves, OH, USA) to collect samples of total suspended particulate and n-alkanes in the gas phase. Particles were collected on quartz fiber filters. Gaseous n-alkanes were adsorbed by PUF and XAD-2 in a cartridge placed downstream of the filter holder in the sampler.

本研究使用Model PS-1 PUF采样器，以石英纤维滤纸收集总悬浮微粒，并在滤纸下游以 PUF及XAD-2吸附气相中的半挥发性有机成分。

Synthetic crystals of optical quartz are used as optical light convenors in photo and video devices.

光学石英人造水晶用于照相机和录像机里的日光灯

For example,disease－resistant varieties of wheat have been crossed with high－yield wheat to combine these Quartz cuvettes .

比如，抗病小麦同高产小麦杂交，形成了一种具有双重特性的新的小麦品种。

Metallization in the deposit is an important period for the scale and distribution of geodes and for the formation of beautiful mineral crystals and druses of natural craftsmanship in ore bearing quartz veins in this area .

瑶岗仙黑钨矿床石英脉的地质特征，晶洞类型，含晶标志，分布规律以及晶洞发育的控制因素研究表明，矿区第Ⅲ成矿期矿脉的晶洞规模，分布，优美晶体，晶簇天然观赏矿物的成生，具有一定的理论，经济研究意义。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。