查询词典 geological

Starting from the view point of the characterization of geological objectives, interpretation is made of the plane coordinate conversion from both its physical and geometrical significance.

从地理对象描述角度出发，对平面坐标转换进行了物理意义和几何意义的解释，并得到概括的数学模型，建立2类转换方法的参数计算公式。

By comparison with the influence of safety factors,nominal height, corner quantity, and geological condition on project cost for 110 kV steel tubular pole structures overhead transmission line, the paper gives the recommendation values of safety factors for conductor and ground line design.

中文摘要：通过对110kV钢管杆架空线路安全系数的不同取值、不同呼称高、线路经过的不同转角数量和不同地质条件对工程造价的影响进行分析比较，提出了线路设计导、地线安全系数的推荐值。

On that basis, the author points out that material of the oil generation has the multi-component characteristics and that the oils have the multi-source characteristics, and, further, it is indicated that oil formation is a process of multi-source and multi-component compounding and that the process is a part of the continuous hydrocarbon generation model of the damped cosine curve during the burial of sedimentary organic matter in geological time.

另外，对低成熟石油的相关成烃母质进行了综述，在此基础上给出了低成熟成烃母质的定义，指出了低成熟石油成烃母质的多元性和油源的多源性特点，同时还指出低成熟石油是沉积有机质在地质埋藏过程中波动成烃连续模式之部分，其具有多元多源复合成烃行为和分阶段连续演化的特征。

Drills a hole the filling pile to be suitable for the subsoil water level low and complex, and often needs the counterfort the geological situation.

钻孔灌注桩适用于地下水位较低的和复杂且常需护壁的地质情况。

By means of silty fine sand layers, the paper researches the grouting systems that consists of cement single liquid grouting material, MC super and thin cement single liquid grouting materials, cement and water glass of liquid grouting materials, MC super and thin cement and water glass of liquid grouting materials, TGRM single liquid grouting material, and HSC single liquid grouting material, respectively. The grouting design, grouting parameter, grouting result check of the karst cave No.2 and two passive countermarch returns to fill the situation are analyzed, which can provide an important reference for future tunnels under similar geological conditions.

针对2溶洞平导高压富水粉细砂层地质特点，研究出了由普通水泥单液浆、超细水泥单液浆、普通水泥－水玻璃双液浆、超细水泥－水玻璃双液浆、TGRM单液浆和HSC单液浆组成的注浆材料配套体系，并对2溶洞平导施工过程中出现的2次较为被动的后退回填局面以及施工中的注浆设计、注浆参数选择和注浆效果检查评定进行了总结分析，以期对类似工程的设计、施工提供借鉴价值。

Based on the Reserve Database of Mineral Resources in China (1997), this paper established the geological model, grade model, tonnage model and grade-tonnage model of 394 placer gold deposit s in China, which involve frequency histograms and cumulative frequency distributing graphs.

依据"1997年全国矿产储量数据库"资料，对全国 394个砂金矿床建立了地质模型、品位模型、吨位模型、吨位—品位联合模型，模型类型包括频率直方图、累积频率分布图；分别总结了砂金矿床品位及吨位分布的典型数学地质特征。

Earth current intensity vary greatly with latitude and the geological structure.

大地电流强度变化很大，与纬度和地质构造有关。

The maps at short periods reveal an evident lateral heterogeneity in the curst of North-China, quite well in agreement with known geological and tectonic features.

四、将研究区域划分为0.25°×0.25°的网格，用面波层析成像方法，反演得到了4s-40s周期的群速度分布图像。

Ma (early epoch of early Cretaceous) mafic dikes from south and north Jiangxi province, respectively, are available to comparative geological and geochemical discuss reveal that they are related to curst extension event and distinguish between rock series and trace element and isotopic characteristics of mafic dikes from south and north Jiangxi.

对赣南大吉山地区和赣北地区早白垩世基性岩脉的地质地球化学特征进行了系统的研究，表明它们可能代表中国东南部早白垩世初存在一次重要的岩石圈伸展和地壳拉张事件。

S-Transform;Time-frequency analysis;Surface wave suppression;First-break picking;geological cyclothem bodies;seismic facies;cave abnormal detection

论文导师顾汉明，论文学位硕士，论文专业地球探测与信息技术论文单位中国地质大学，点击次数 29，论文页数 55页File Size3798K

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。