查询词典 stratum

The intensity of the ultrasonic wave will increase when the ultrasonic wave is focused by the sound lens in rock stratum.

然而 ，这种方法要受到两个因素的制约：一是增大超声换能器的功率，必然要增大超声换能器的尺寸，这在本身尺寸就很小的油井中是有一定限度的；二是当超声换能器辐射出的超声波的强度过大时，在超声换能器的周围要发生强烈的空化现象，产生大量的气泡，这些气泡将对超声波产生强烈的散射作用，导致超声波的衰减，反而降低超声波在岩层中的传播距离[1] 。

For slender branch sweet vetch which is up to 40.6% only, and analysis of variance proves that sand willow shrub forest reducing close stratum effect of wind speed has obvious advantages fully too. The seventh, there are many aspects of ecological benefit of city forest in arid and semi-arid areas.

第六、根据多目标灰色关联度评价结果，适应干旱半干旱风沙区城镇庭院绿化的针叶乔木树种为：云杉、落叶松和樟子松，其关联度评价值分别达到0.7720、0.7718和0.7622；落叶阔叶乔木树种为：山桃、垂柳、垂榆，其关联度评价值分别达到0.9554、0.8631和0.8362；花灌木树种为：玫瑰、沙地柏和黄刺玫，其关联度评价值分别达到0.7916、0.7730和0.7492。

Suiting for disposing in factory and suburb outer edge belts in terms of protection against wind and preventing sand from drifting, the tree is populous, and the bashes are sand willow and slender branch sweet vetch Among them, sand willow shrub forest in the nearly stratum 10cm layer, can decrease wind speed by 60.3%.

上述野 外试验和盆栽试验都证明上、下覆膜和美国干水处理保墒效果较好、性能稳定，可以在干旱半干旱地区城市森林植被建植过程中大面积推广应用。

In this paper , under the circumstance of small cross section of short piles driving into the shallow hard stratum, the authors use SCPT index to calculate driving resistance and considers the strength of the pile shaft to analyze.

采用 小截面混凝土短桩，是一种常见的桩基设计方法，可以充分发挥桩基中每立方混凝土的承载力，其经济意义是显而易见的。但在实际桩基施工过程中，沉桩往往产生截桩及桩头受损破坏等现象。

Stratum of bearing ore is shallow-sea facies fragmentary rocks and carbonatite construct,the activity of ore area fracture is multifarious, belong to shallow layer brittleness, toughness-brittleness shear fracture zone.

容矿地层属青白口系的浅海相碎屑岩—碳酸盐岩建造，矿区断裂活动频繁，多属浅层次脆性、韧—脆性剪切断裂带。

The stratum of the area is proterozoic,Tao wan group(Pt1t).The nephrite deposit wasformed in carbonate rocks or calcium mudstones of shallow-sea facies, which was penetratedby basic magmatic rocks, Jinningian gabbro .

该区地层为下元古界桃湾群(Pt1t)，玉矿赋存于浅海相泥质碳酸盐岩及钙质泥岩，局部夹中基性火山岩的桃湾组中。

Self-representation changed in tandem with the rise of a new social stratum, the shidafu, and the literati culture it produced.

在双匹马车里的自我形象随着新的社会阶层，如士大夫的兴起和由它产生的自由文人而改变。

Firstly, 19 seismic characteristic parameter vectors are extracted in about five species such as grey, fuzzy, fractal, amplitude , self correlation and power spectra from data sequence of the target stratum.

首先对目的层地震数字序列提取灰色、模糊、分维、振幅、自相关5类19个地震特征参数向量，然后在地质建模的基础上，进行灰色模式训练与识别，获得整个评价区的油气检测结果。

The mixing power and circulation characteristics of Newtonian fluid and pseudoplastic fluid were measured in a φ300mm organic glass vessel,by using anchor and tri-leaf impeller,anchor and inner-outer screw,orthogonal twi-stratm triangle blades and single screw,orthogonal twi-stratum triangle blades and inner-outer screw types of combined agitators.

为使聚合釜内搅拌介质在湍流、过渡流及层流域都能达到良好的混合，对锚－三叶推进器、锚－内外单螺带、正交双层三角桨－单螺带、正交双层三角桨－内外单螺带等4种组合桨搅拌器，于φ300mm的有机玻璃釜中，测定了在牛顿流体和假塑性流体中的搅拌功率和循环特性。

The main target stratum has the following characteristics: dominated by barrier-free clastic tidal facies, tidal facies are divided into three subfacies: supratidal zone, intertidal zone and subtidal zone. The tidal facies in Tazhong Area are mainly dominated by intertidal sand flat, sand-mud-mixed flat, intertidal mud flat and supratidal mud flat subfacies.

研究表明研究层段主要发育无障壁碎屑潮坪沉积相类型，潮坪相进一步区分出潮上带、潮间带和潮下带三个亚相，塔中地区潮坪沉积主要发育潮下带潮汐水道、潮间带砂坪、砂泥混合坪和潮间带泥坪及潮上带泥坪等微相。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！