石的

Any of numerous extinct colonial marine animals chiefly of the orders Dendroidea and Graptoloidea of the late Cambrian to the early Mississippian periods, whose fossil remains are often used to date the rocks of the ''.

笔石动物许多已绝灭的殖民地海洋生物中的任何一种，主要为寒武纪晚期到密西西比纪早期的树形笔石目及笔石纲的生物，其化石残存物常用于确定志留纪和奥陶纪岩石的年代

Based on the overall temperature monitoring for frozen soil embankment with riprap slope protection and without riprap slope protection in Qingshuihe test section of Qinghai-Tibet Railway,the ground temperature,accumulated temperature and the maximum thawing depth variation in temperature field of these two kinds of embankments were analyzed.

通过对青藏铁路清水河试验段片石护坡、无片石护坡的冻土路堤和地基的温度进行的全面监测，对比分析了路堤体内及基底的地温、积温及温度场中最大融化深度的变化情况，结果表明，采用片石护坡措施的试验路堤，与对比段相比，降温效果明显。

This paper studied on domestication of plantlets in tissue culture and rapid propagation of Dendrobium loddigesii Rolfe which dealed with the different medium composed of gravel, rotten soil, perlite, turves, sawdust and china clay, in the different light intensity and temperature. The results showed that the best selection of medium on the domestication was 10cm gravel in bottom, rotten soil + sawdust + perlite,(5:1:1) in the middle part ,5cm greenness bryophyte on the surface.the best selection of medium on the transplantaion of plantlets in vitro of bramble,and light intensity was employed harf overshadow by adumbral net,temperature confined 14℃－28℃.

本文研究了环草石斛组培苗炼苗的影响因素如光照强度，温度以及基质等，初步获得环草石斛组培苗炼苗生产技术：能进行人工光、温、水控制的如塑料薄膜大棚内进行环草石斛组培苗炼苗，光照强度的要求是使用遮阳网半遮阴；温度控制在14℃－28℃；出瓶苗要求株高2～5cm，叶片4～7，根数3～8；组培苗炼苗基质为底层是约10cm厚的碎石，在碎石上面是腐殖土+锯末+珍珠岩(5：1：1)，最上面是一层5cm厚的新鲜苔藓。

This paper employs clay stone analysis to Permian-Triassic boundary strata from three deep water sections, Duanshan, Nashui and Liuqiao, located in Guangxi and Guizhou region, southwestern China. The result shows that clay stones from the three localities are composed of illite-montmorillonite mixed layer, montmorillonite and kaolinglite. There are rock fragments such as bipyramid quartz and zircon which are related to volcanic process found in all the sections except in Nashui section.

对贵州断杉、纳水以及广西柳桥3条深水相剖面上的二叠系－三叠系界线附近黏土岩的研究结果表明，在断杉、柳桥剖面黏土岩中的私土矿物主要由伊－蒙混层、蒙脱石和高岭石组成，碎屑物质中存在六方双锥石英、锆石等与火山活动有关的矿物；在纳水剖面黏土岩中未发现与火山活动有关的迹象。

The positron lifetime spectra were measured for the dehydration by pumping vacuum or by heating for USY samples respectively. Comparing with NaY, the results show that it is necessary to use four components to characterize Y zeolite with faujasite structure, and it needs another, i. e. the fifth component, to show the micro-structure information of the secondary pore for the Y zeolite which include much secondary pore.

测量了USY真空脱水以及加热脱水过程的正电子寿命谱，并与NaY的测量结果相比，结果表明：对于具有八面沸石结构的Y沸石需要用四个寿命分量来表征，对于含有大量二次孔的Y沸石还需要用第五寿命分量来表征二次孔的微结构信息。

The germinative number of horsebeans and peas were raised by 44% with activated water by tourmaline. 200μl 1 X 10~6/ml mouse's H_(22) cell, 200μ 4X 10~6/ml splenic cell, 200μl 1 × 10~6/ml epidermal cell were all inhibited after the action of tourmaline. It is analyzed that the factors which effected the multiplication of the cells included direct action which are tourmaline's electric field, far-infrared, negative ions and solvent ions, and indirect effect which are small water clusters and pH value.

电气石活化水使蚕豆和绿豌豆种子发芽速度均提高44%。0.5g电气石分别对200μl 1×10~6/ml的小白鼠H_(22)肝癌细胞，对200μl 4×10~6/ml小白鼠脾细胞，对200μl 1×10~6/ml的小白鼠表皮细胞的增殖起抑制作用，分析认为，电气石影响细胞增殖的因素包括电场、红外线、负离子和溶出离子对细胞的直接作用和通过改变水分子结构、培养基pH值的间接作用。

The main composition of the quartz stone is selected natural quartz. It's made of 87% quartz crystal and 13% resin and annexing agent.

环保的材料：石英石的主要成分主要是精选的天然石英石，由87%的石英石晶体和13%的树脂和添加剂复合而成。

On the base of model machine and productive practice, analyses the operating principle, main performance, characteristic of vacuum density separator as well as relations between parameters. develops the kinetic condition and rule of grain and stone on the screen, discusses the effect of air velocity in course of stone removal, and makes some amendment to the textbook［1］, gives some experience and method about the design of the mechanism.

在样机和大量生产实践的基础上分析了比重去石机的工作原理、主要性能、特点及各参数之间的关系，分别阐述了石子和谷粒在去石筛面上的运动条件和规律，分析了气流速度对去石效果的影响，并对教科书存在的问题进行了修正和补充，得出了一些有关机构设计方面的经验和方法。

As long as you keep travelling along round-the-island road, you will pass by various beaches, Sanzhugou, Clam Board Beach, Black Ghost Hole, Thick Stone Reef, Indian Stone, Guanyin Stone, and other beautiful scenic spots.

沿著环岛公路一路前进，红绿灯号志在这里完全看不到，伴随的只有随兴惬意的自在以及蓝色海洋的缭绕。沿途会经过数片沙滩、原始林相的山猪沟、海天一色的蛤板湾、乌鬼洞、厚石群礁、红番石和观音石等景点，饱览美不胜收的海景。

The model does not predict extensive dissolution of quartz,kaolinite and feldspars in this region,however,which conflicts with observations from one of the field tests.

与现场观测中的一种情况不同的是，模型没有预测出这一区域中石英、高岭土和长石的大量溶解，这种不一致现象可能是由于缺乏热动力基本数据造成的，使得在高岭土–蒙脱石混合地层中高电荷蒙脱石变为低电荷蒙脱石过程中的水–热转换在模型中不能加以表示。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。