微裂缝

Branchlets not virgate, gray-brown or dark brown, scabrous, with longitudinally arranged slits, not shiny; leaf blade leathery, spatulate or rhombic-elliptic, apex truncate or acute, adaxially glabrous or midvein sparsely puberulent, abaxially with ± dist

小枝不棒状，灰棕色或者暗褐色，粗糙，带有纵向安排的裂缝，不发亮；叶片革质，匙形或菱形椭圆形，先端截形或锐尖，中脉疏生微柔毛的正面无毛或，背面具多少dist 42 R。 rosthornii 小冻绿树

It is mainly applied in the fracture identification ,depositional microfacies and nearwell structural analysis of Chaidamu Basin.

FM I在柴达木盆地主要是在裂缝识别、沉积微相及井旁构造分析等方面的应用。

Principles of microseismic monitoring in imaging of hydraulic fracturing, monitoring of waterflooding front, and dynamic monitor of reservoir and earth stress were discussed.

重点介绍了在油田中用微地震监测技术进行水力压裂裂缝成像、水驱前缘监测、储层描述和地应力监测的应用原理。

And the deep fracture means the sheeted fracture or fracture zone in fresh rock mass.

深部裂缝是指在微新岩体中发育的张性破裂或破裂带。

The further exploration should look for reservoir of high quality located at appropriate structural and developed area of syngenetic facture.

因此，寻找构造适当部位有利沉积微相内的优质储集体和原生裂缝发育区，应为洛带气田今后的重点勘探方向。

Institute of Petroleum Exploration and Development,PetroChina,Lanzhou 730020,ChinaEarthquakes occured overmuch and seismites developed in southwestern Qaidam basin. The seismites made serious seismic-related soft-sediment deformation structures,including pillow structure,ball structure,pillow bed,liquefied sand-stone vein,liquefied mudstone vein,micro-fault,micro-fracture,micro corrugated lamination and sandstone fungus.

研究表明，柴达木盆地西南地区地震活动强烈，深、浅层均发现一系列与古地震有关的震积岩，形成一系列软沉积物变形构造，主要包括震积砂枕、砂球构造、枕状层、液化砂泥岩脉、层内错断、地裂缝、微褶皱纹理、沙侵蘑菇等。

This analytical approach shows that, as increasing the wear flat of indenter, the maximum indentation force needed to develop critical plastic zone increases and its corresponding critical penetration depth also increases slightly, Note that the effect of wear flat will affect rock fracture behavior. In addition, regarding the simulation of the effect of doubled-indenters, result shows that two adjacent indenters may interact each other as reaching the transient/critical relative space between indenters of 2~3. It dicpicts that a proper spacing arrangement between indenters may enhance a efficient mechanical cutting due to the less required maximum indentation force and energy dissipation.

由数值模拟之结果得知，当楔尖磨耗增加时，岩材产生脆性破坏之初裂贯切力随之增加，而其对应之临界贯入深度则亦微幅增加，故磨耗效应确会干扰岩材脆性破坏机制之形成；而由双刀效应之模拟，可知两贯切刀楔互制影响之破坏裂缝生、衍行为，当双刀相对刀距为时，岩材之破坏特徵有明显变化，即定义此为临界相对刀距，并探讨其产生脆性破坏所需初裂贯切力之变动范围及应力重叠区，由此得知适当之刀距安排将有助於减少能量之耗损。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。