压下的

Under the guide of the theory of dynamic system of entrapment, the main methods applied here are multidisciplinary analysis and comprehensive study. The characteristics of compaction curves, the evolution of organic matter, the direction of migration and assignment, conduit system, fluid potential are studied It is concluded that the low maturity of the source of the Eogene age is the main factor to control the entrapment.

在成藏动力学系统理论指导下，对德南洼陷下第三系进行整体、系统、动态、宏观与微观相结合的原则，分析压实曲线特征、异常孔隙流体压力；研究有机质演化过程、油气运移方向和分配单元、输导体系、构造样式；提取测井、地震资料，计算流体势；运用相干技术和可视化等技术。

If the boiler check valve hasn't be shut, then must prevent steam and water back to the boiler . With the effect of tgravity, check valve and damper piston can immediately get airproof and the steam and water won't back to the boiler even in an atomosphere of low pressure.

如果锅炉没有关闭截止止回阀，则必须防止回流到锅炉上，阀瓣压铁和缓冲活塞，在重力的作用下，能够迅速实现密封，使得蒸汽和冷凝水即使在低压下也不会回流到锅炉里。

While the oscillating flow cycle-averaged pressure drop for a Nylon wire screen regenerator is larger than that for a stainless steel regenerator, which is 3 to 5 times higher than that in a steady flow.

这一结果与其他相关文献的结论基本吻合。对於非金属蓄冷器，发现它的平均压降要大於金属蓄冷器的平均压降，是相同条件下稳定流动的3~5倍。

In order to ascertain a reasonable strip mining project for the coal mining under villages with thin bedrocks under the thick alluvium in Linhuan, the characters of surface subsidence in strip mining were studied by numerical simulation method based on discrete element.

为了确定临涣煤矿厚表土层薄基岩下合理的村庄压煤条带开采方案，采用离散元数值模拟方法研究厚表土层薄基岩下条带开采地表沉陷特征。

The piezoelectric activities of the porous PTFE electrets mainly depended on the charge storage ability of the electrets themselves.

研究结果指出：(1)常温下，多孔PTFE驻极体的准静态压电系数d33随充电时间的延长而增加，并呈现出线性区、非线性区和饱和区三个区间，多孔PTFE驻极体的压电活性主要依赖于这类材料的电荷储存能力。

The main reason of decreasing of AC pollution flashover voltage with the dropping of pressure on the simple plane model is the reducing of the requirement of AC arc to develop under low pressure.

由于气压对于交流电弧发展条件的影响程度大于气压对于直流电弧伏安特性的影响，使得低气压下交流污闪电压的下降指数大于直流污闪电压的下降指数。

This article studies the affection of the water ratio of the forage grass to the cube formation, forage density and production ratio.

在机具一定的情况下，以乌梁素海生长的水草为压块物料，进行饲草压块成形试验，着重研究饲草的含水率对草块成形情况、草块密度、生产率的影响。

Compositions and performance of hard press-in material used for blast furnace lining repair and made from modified resin are discussed in this paper.

对改性树脂结合的高炉硬质压入修补料的组成、性能进行了研究，探讨了不同组成对性能的影响关系，研制的新型压入修补料高温下流动性好，粘结强度高，使用性能良好。

The research results showed that (1) inelastic compressive behavior of the gusset plate was similar to a cantilever plate in compression load,(2) buckling strength was reasonably predicted based on an inelastic plate buckling equation and buckling coefficient, and (3) design guidelines of the gusset plate in compression were proposed with inclusions of edge stiffeners.

本研究结果显示：(1)含挫屈束制消能斜撑之接合板在受轴压作用下，将产生的挫屈模式为Fixed-Free、(2)接合板在Fixed-Free模式下之挫屈强度预测及(3)如何加劲接合板使其强度能达到降伏后之非弹性挫屈行为。

Results 278 cases of patients who were followed an average follow-up of 3 months, all patients have achieved satisfactory therapeutic effects, and surgery-related complication rate was 9.57%(31/324), including 2 cases of acute intracranial hematoma, intracranial infection in 1 cases, non-tension pneumocephalus in 14 cases, seven cases of subdural effusion, low intracranial pressure in 5 cases. Conclusion Drainage using minimally invasive surgery (one-time use of YL-1 type of intracranial hematoma puncture needle grinding and urokinase technology) can achieve a more better therapeutic effect than burr-hole craniotomy with drainage or simple minimally invasive irrigation and drainage in the treatment of chronic subdural hematoma.

结果：本组278例病人获得随访，平均随访3个月，全组患者均取得较满意治疗效果，与手术相关并发症发生率为9.57%（31/324），包括急性颅内血肿2例，颅内感染1例，非张力性气颅14例，硬膜下积液7例，低颅压5例，结论：采用微创引流手术（使用 YL －1型一次性颅内血肿穿刺粉碎针及尿激酶技术治疗慢性硬膜下血肿，能取得较钻孔引流术单纯微创冲洗引流更好的治疗效果。

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。