The numerical simulate result of orthorhombic medium formation and elliptic borehole conditions are presented.
给出了正交各向异性介质地层条件和椭圆井眼条件下波场模拟的结果。
Low compressive strength of soft to medium formations. Such as soft shale, soft limestone, soft sandstone, hard and soft abrasive interbedded medium formation.
低抗压强度的软到中等地层，如中软页岩。中软石灰岩。中软砂岩。和软硬研磨性夹层的中等地层。
Medium hard formation with high compressive strength. Such as hard shale, limestone, sandstone, dolomite, anhydrite and marble.
高抗压强度的中硬地层，如硬页岩。石灰岩。砂岩。白云岩。和硬石膏。大理石。
Medium hard formation with high compressive strength. Such as limestone, taconite, blaize, quartzite, silica sand, basalt, granite ect.
高抗压强度的硬地层，如硬石灰岩。燧岩。硬砂岩。石英岩。石英砂。玄武岩。花岗岩等极硬岩层。
In order to probe into laws on formation of natural gas hydrates in porous medium, natural gas hydrates have been formed through mixtures of ice powers and quartzes in experiments.
为了探讨多孔介质中天然气水合物原位形成规律性，进行了将冰粉和石英砂混合并形成天然气水合物的实验研究。
The filtration mechanism of PVA17-88 crosslinked is that the formation of a fine film between filtrate medium and cake can prevent loss of water in slurry into formation.
加入交联剂的PVA17- 88降失水剂的降滤失机理是：在过滤介质与滤饼之间形成一层致密的薄膜，阻止了水泥浆中的水向地层流失。
Conclusion The deformable medium reservoir should be developed by a reasonable presser, as possible as keeping original formation pressure.
结论变形介质油藏的开发应尽可能在原始地层压力下开采，在合理生产压差下开发。
Wave impedance inversion and imaging of the medium between the casing and the formation based on the practical data of an oil field are carried out.
最后对现场实测资料进行了套管-地层环空间内介质的波阻抗定量反演与成像。
KQC series of air hammers used in gas drilling can solve certain problems, such as lower ROP(Rate of Penetration) and well deviation, which occurred in mud drilling in above medium hard formation.
在油田气体钻井中使用KQC系列空气锤，解决了泥浆钻井在中硬以上地层中钻速慢、易井斜的难题。
PDC bits have been used to drill the homogeneous formation from soft to medium-hard, but they are not suitable for drilling in gravel and multi-interbedded formation.
PD C钻头用于软到中硬的均质地层钻进具有钻速高、寿命长等特点，但不适合含砾石地层和软硬交错地层。
Suitable for medium hard formation.
适应于中等硬度地层。
Suitable for soft to medium non-abrasive formation.
适应软到中等非研磨性地层。
The paper has analysed the relationship between ore formation and tectonics, medium structure, microstructure of the Xiangxi gold deposit, and analysed the ore-forming mechanism.
本文对湘西金矿的大地构造、中、小构造、显微构造成矿进行了探索，在此基础上作了构造成矿机理分析。
Process cartridge, memory medium for the process cartridge, image forming apparatus and image formation control system.
处理盒，用于处理盒的存储介质，成像设备和成像控制系统。
The formation of arsenate minerals shows the intimate relation to mineral constitutes of the primary ores, climatic conditions and medium conditions etc.
砷酸盐矿物的生成与原生矿石的矿物成分及其数量、气候条件和介质条件等因素密切相关。
Conditioned medium (CM) stemming from cell suspension culture could remarkably promote the formation of single cell clone from culture cells of Panax ginseng below a critical cell plating density.
来自细胞悬浮培养物的条件培养基能显著地促进人参培养细胞的单细胞在较低细胞植板密度培养时的克隆形成。
Cause of formation of groove corrosion was analyzed from various aspects such as composition of medium or phase, characterization of flow, quality of material and so on.
作者从介质的组成、相组成、流动特性和材质等方面，对沟槽腐蚀的成因进行了讨论分析。
Medium with higher concentration sucrose can promote bulblet enlargement but inhibit bulblet formation.
高浓度蔗糖能促进子球增大，但对子球再分化有抑制影响。
The geological structure influenced the Sichuan red strata. the weathering product and weathering strip's formation are analyzed. The red strata is a complex mechanics medium.
对四川红层的特征进行了研究，分析了地质构造对四川红层形成的影响以及四川红层的风化物和风化分带的形成。
The cool storage capacity increases and the formation is easier with the increasing flow or decreasing medium temperature.
冷媒流量越大，冷媒温度越低，水合物越容易生成，蓄冷量也越大；
The results revealed that laying a piece of filter paper on the shoot-inducing medium could markedly enhance the formation of shoot, and the frequency of shoot induction could reach as high as 97%.
主要结果如下：研究了在丛生芽诱导培养基上加铺滤纸对青蒿丛生芽诱导的影响，结果发现，加铺滤纸后青蒿丛生芽诱导率显著提高，丛生芽诱导率能够达到97%左右。
From the point of formation protection, the fractured reservoirs are classified as reservoir with small to medium fractures and reservoir with large fractures.
从储层保护的角度把裂缝性储层分成两大类，即中小裂缝储层和大裂缝储层。
Image formation in turbid medium under a microscope is studied using Monte Carlo technique. The relationship of image resolution with absorption property of turbid medium is discussed.
采用蒙特卡罗方法研究了混浊介质的吸收特性对共焦荧光显微成像的影响。
The use of air as a circulating medium for drilling is the best way for the development of low pressure and low permeable formation.
空气钻井采用空气作为循环介质，最适低压和低渗透储层的开采。
Suitable for soft to medium hard Non-abrasive formation.
适应于软到中硬非研磨性地层。
The Haojiahe sandstone copper deposit occurs in the red elastic rock formation of Mesozoic continental facies in central Yunnan, being a medium size one.
郝家河砂岩型铜矿床产于滇中中生代陆相红色碎屑岩建造中，规模中型。
Callus formation frequency as well as plantlet regeneration frequency was dependent on the composition of basal medium and the concentration of 2, 4-d.
胚性愈伤诱导率和植株再生率与培养基的种类、培养基中2,4 - D的浓度、小麦基因型及诱导和分化培养基中激素种类和浓度等有关。
Over the medium term, housing activity will stabilize and begin to grow again, if for no other reason than that ongoing population growth and household formation will ultimately demand it.
在中期，房地产市场将会稳定下来并重新开始增长，如果没有其他原因，目前的人口增长和家庭结构最终也会要求实现这一增长。
The ore-hosting Yaojia Formation is composed of a set of braided stream medium-fine grained sediments.
姚家组为一套中细粒辫状河流沉积。
The ore-hosting Yaojia Formation is composed of a set of braided stream medium-fine grained sediments.
姚家组为一套中细粒辫状河流沉积。
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