最常见的空间是那些由松散的、未固结的砂和砾石组成的颗粒(沙粒和小卵石)之间的空间。
The commonest spaces are those among the particles—sand grains and tiny pebbles—of loose, unconsolidated sand and gravel.
今天刚刚上班,小徒弟跑过来:师父今天我看到船台的那条快下水的船很奇怪,好好的螺旋桨又是打砂又是喷漆。
Todaywhen I just to begin the work, the small disciple come to ask me: master, I sawthe berth of the quick launching ship is very strange, the good propeller is sandingand painting.
大坝垫层料采用以天然砂砾料为主、掺入小石和粗砂以调整级配的方式生产。
The cushion layer for the dam is constructed with the material prepared mainly with natural sandy gravel and mixed with proper amount of pebble and coarse sand.
这些砂体具有分布范围小、横向变化快、且互不连通的特点。
These sandstone lenses are characterized by a small range of extention, a rapid horizontal variation and the isolation from one another.
砂壳气味薄,燥性小,肝旺胃弱者用之较为适宜。
It is more suitable for weak stomach with over active liver.
通过新风积砂隧道采用小导管超前预支护技术成功克服了短隧道的开挖问题。
Whereas the new wind-blown sand tunnel has adopted small duct leading pre-bracing and overcome problem with excavation.
这些砂卵石层一般具有埋深不大、变形小、承载力高、厚度大的特点。
These sand gravels stratum have the characters of shallow cover, small transform, high bearing capability and big thickness.
在玻璃钢加砂设备的研制过程中,遇到了砂料输送量大,要求输送装置占用空间小的问题。
The problems of conveying a large quantity of sand while keeping small occupying space of sand-conveying equipment are come across in developing sand-feeding equipment.
锥面机械密封已应用在离心砂泵上,经钻井公司使用,效果良好,泄漏量小,寿命长,功耗低。
The conic mechanical seal has been used in sand pumps in oil fields with well performance, long life, low leakage and low power loss.
该压裂液配制简单,不需要杀菌剂和破胶剂,具有流变性能好、造缝与携砂能力强、对地层伤害小、使用方便等优点。
Other advantages of it are good rheological property, strong fracture making ability and sand carrying capacity, and little damage to formation, etc.
具有洗净度高,结构合理,处理量大,功耗小,洗砂过程中砂子流失少。
High clean degree, proper structure, high processing capacity, low power consumption, low material loses.
根据低渗透非均质油藏的特点,分析了启动压力梯度、纵向非均质性、小层厚度和平面砂体厚度展布对该类油藏开发的影响。
The influences of threshold pressure gradient, vertical heterogeneity, subzone thickness and areal sand thickness distribution on development of low-permeability heterogeneous reservoirs are analyzed.
若是软基质,用小铲挖出表面5 -10厘米厚的基质,找出砂泥中的动物,点算和鉴定。好评(0)。
For soft substratum, dig out the top layer (5-10 cm thick), sort out the animals, identify and count them.
研究了地膜覆盖对旱砂地小南瓜生育特性和水分利用效率的影响。
This paper studied the effect of plastic film mulch cover on growth and development and water use efficiency of small squash in the dryland.
花园鳗小鳗鱼是钻入珊瑚礁的砂。
Garden eels are small eels that burrow into sands of coral reefs.
滑溜水虽然比其他压裂液损害程度小,但也容易导致支撑剂在近井带的裂缝底部发生沉降,并非有效的携砂介质。
Slickwater, while less damaging than other fluids, is an ineffective fluid transporter that leads to proppant settling on the fracture bottom close to the wellbore.
它具有洗净度高、结构合理、处理量大、功率消耗小、砂子流失少、故障率低等特点,是国内洗砂设备升级换代的最佳选择。
It has high cleaning, reasonable structure, large capacity, small power consumption, less and loss, and low failure rate, is the best choice for upgrading of domestic sand washing equipment.
但其灌水器流道小,易堵塞,需在系统首部增设过滤装置,砂过滤器即是生产中最常用的一种。
But the flow path in Micro-irrigation emitter is so small that plug happened easily, so filtering system is needed to add to the header of irrigation system.
改性脲醛树脂用于防砂,成本低、地面粘度小、可泵性好、施工操作方便,固砂后强度、渗透率均较高,有一定的应用前景。
When using beetle for sand control, the cost is low, surface viscosity is low, pumpability is good, operation is simple, and both the strength and permeability after sand consolidation are high.
FII 2小层以上的分流河道砂体是研究区主要的油气聚集体,为今后勘探和开发提供了重要依据。
Distributary channel sand bodies of above FII2 small layer is best reservoirs, which is key evidence for exploration and development in the future.
对小沙湾黄河大桥主桥箱梁C55混凝土配合比和施工工艺进行了研究,重点分析了山砂对混凝土性能的影响。
This paper researches the mix ratio of C55 concrete and construction technology of Xiaoshawan Bridge box girder, especially the influence of hill sand on concrete performances.
重型纸基砂带,具有适中的柔软度,砂面平整、延伸率小,适合做各种砂带、砂卷和异型制品。
Heavy paper backing, with medium softness, flat sanding surface and small extension. Suit for making various kinds of belts and specialty abrasives.
颗粒大小、级配及水质条件与土的力学性质密切相关,水位的存在使地基具有上硬下软的双元结构特点,与相对密度相同的石英砂地基相比,其沉降变形要小几十倍。
Double-Layer structure in subsoils is caused by water level and the settlements of subsoils are several dozen 'times smaller than those of quartz sands for 3rd band buildings.
结合工程实例对投石压浆无砂混凝土小桩复合地基的设计原理和施工工艺进行了综合分析 ,并强调施工中应注意施工现场的质量管理和质量核验 。
The principle and technical requirement of throwing stone and pressing mud concrete pile are described, and its actual application to the compound foundation is introduced.
工程实践表明:短密砂桩处理河道驳岸软土地基,具有施工简单、造价低、环境影响小、地基承载力明显提高的优点,因此值得推广应用。
The fulfillment proves that the shallow-dense sand pile could be used in treatment soft foundation on the river bank. Its feasibility and economy are p…
工程实践表明:短密砂桩处理河道驳岸软土地基,具有施工简单、造价低、环境影响小、地基承载力明显提高的优点,因此值得推广应用。
The fulfillment proves that the shallow-dense sand pile could be used in treatment soft foundation on the river bank. Its feasibility and economy are p…
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