地层的

These distinctive quartzite pebbles have been found in Cambro-Ordovician strata 85km to the south,near Madison.

These独特的石英砾石已Cambro发现，奥陶系地层，南85公里麦迪逊附近。

Microfossils, including spores, pollen and radiolarian, were found in the Mesozoic which was first encountered in Well MZ-1-1 in the north of the South China Sea.

MZ-1-1钻井首次在南海北部珠江口盆地揭示了中生界，获得了可确定地层时代和沉积环境的孢粉和放射虫化石。

It made the original fluorescence logging and gas logging reflect the real formation oil and gas information uncorrectly.

使原有的荧光、气测录井不能准确反映地层真实油气信息。

The sedimentary models of filling in two types of cracks correspond to the input frequency of mud-water mixtures, showing a clear rhythmicity.

上述两种地层裂隙内充填物沉积特征均与后期充注期次相对应，表现出很好的韵律性。

Based on dialog box interactive mode provide freeform section planes by rotating vector.

工程地质人员在了解地层结构时，多采用观察二维地质剖面图的方法。

This paper,in detail,deals with the cause of formation of sand hill and formation mechanism of palaeolimnology.

至晚冰期的年代地层序列和古气候环境，同时对沙山成因、古湖沼形成机制进行了深入探讨。

According to the sand filling tube model , research the blank off efficiency、enduring erosion ability and profile control efficiency; The single core flow experiment purports that: at the conditions of 20meter/D injection velocity and 0.5PV injection amount, the blank off efficiency keep above 40% after flushing 20PV.

采用填砂管模型研究了盐沉析体系的封堵效率、耐冲刷性和调剖效率；单岩心实验结果表明：当诱导剂注入速度为20m/天、注入量为0.5PV时，封堵率为66.67%，地层水冲刷20PV后封堵率保持在40%以上。

Moreover drilling measures in different strata are pointed out,which are firstly drilling without slurry in part of silty clay layer,secondly adopting double-bottom bailing bit and bore directly and abandoning slurry with impact drilling rig in muddy clay layer,thirdly selecting short screw auger at low speed in gravel layer,finally choosing rock-socketed drilling tube in shaly sand layer.

指出旋挖钻机在不同地层中的钻进措施：部分粉质粘土层中可用清水或干孔钻进，淤泥质粘土层中采用双底捞砂钻头、直接用冲击钻机钻孔弃浆，圆砾层中采用短螺旋钻头低速钻进，泥质砂岩层中采用嵌岩钻筒钻进等措施，保证施工工期满足架梁节点要求。

Moreover drilling measures in different strata are pointed out, which are firstly drilling without slurry in part of silty clay layer, secondly adopting double-bottom bailing bit and bore directly and abandoning slurry with impact drlling rig in muddy clay layer, thirdly selecting short screw auger at low speed in gravel layer, finally choosing rock-socketed drilling tube in shaly sand layer.

指出旋挖钻机在不同地层中的钻进措施：部分粉质粘土层中可用清水或干孔钻进，淤泥质粘土层中采用双底捞砂钻头、直接用冲击钻机钻孔弃浆，圆砾层中采用短螺旋钻头低速钻进，泥质砂岩层中采用嵌岩钻筒钻进等措施，保证施工工期满足架梁节点要求。

Snow aids farmers by keeping heart in the lower ground levels, thereby sav ing the seeds from freezing.

雪对农民是一种帮助，因为它保持地层土壤的温度，使种子不致冻死。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失