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The relations of inducing skin current of shielding layer, core voltage and core current with the environment field were obtained. The change of shield layer current wave with grounding state of external shield and core voltage with loading resistance was analyzed. According to the dependence of shield layer current oscillating frequency on electromagnetic wave propagation velocity, conception of transporting line of shield layer-ground with equivalent relative dielectric constant was presented. fited equation of equivalent relative dielectric constant with change of cable height was given.

试验得到九芯电缆屏蔽层感应电流、芯线感应电压、芯线感应电流以及环境场之间的关系；分析了皮电流波形随外皮接地状态的变化，芯电压随负载电阻的变化；基于皮电流振荡频率与电磁波传播速度的关系，提出了屏蔽层-大地"传输线"等效相对介电常数概念，给出了等效相对介电常数随电缆高度变化的拟合式；皮电流计算与测量结果在波形、振荡周期、衰减规律等方面有较好的一致性。

Material and method of suture: 56 paients were sutured with silkthread layer by layer interruptedly; 4 patients were running-sutured with "qiangsen" asorbable thread layer by layer; 4 patients with open wound were not sutured and its healed by itself.

缝合材料和缝合方法：56例采用丝线作腹壁分层间断缝合，4例采用"强生"可吸收缝线腹壁分层连续缝合，4例切口敞开未缝合自行愈合。

Repair: hernial sac resection and abdominal wall were sutured with silkthread layer by layer interruptedly,37 cases; 24 patients were running-sutured with "qiangsen" asorbed thread layer by layer; 2 patients whose abdominal defection were repaired with polypropylene melex and another with Dacron patch.

修补方法：疝囊组织切除，腹壁分层丝线间断缝合37例；"强生"可吸收线连续缝合 24例；腹壁缺损用聚丙烯丝网补片修补2例；Dacron修补腹壁缺损1例。

Modifications to the conventional layer by layer optimization method make it possible to avoid computing Hessian Matrix and its inverse form, thus it can decrease computational complexity dramatically. Simulation results for some practical problems such as function approximation and XOR problem, have demonstrated improvements over classical back-propagation algorithm and conventional layer by layer optimization algorithm.

本文在传统逐层优化算法上的改进避免了反复计算 Hessian 矩阵及其逆矩阵，因而可以减少计算量，对一些应用问题，如函数逼近、异或等问题的仿真实验证实了新的算法比经典的 BP 算法以及现存的逐层优化算法的训练速度更快、可靠性更好。

This showed that capacity of water-holding in biological soil crusts were obvious improve,and effected precipitation permeate or water second distribute process.The study results of"fertile islands"formation mechanism in biological crusts showed that biological crusts layer cover could increased nutrients content for below sand soil through precipitation permeate washing,and it promoted plants assimilate more nutriment.The matter import ways of biological soil crusts fertility island had many ways,including the effection of living macrobiotics metabolism in crusts levels,wind-sand flow of near surface,dust deposition and plants decomposition course,etc.Source of particle matter in biological soil crusts was wind-sand flow of near surface,and not dust deposition.Biological crusts layer cover had preserved effection for nature water content in 0-5cm soil layer,compared with the sand of no biological crusts layer,effecting precipitation permeate,and could not obvious restrained from the water evaporate process indoor experiment.

生物结皮层肥岛形成机制的研究结果表明：生物结皮层覆盖能够通过降水淋溶作用而增加下层土壤养分的含量，进而促进植物对养分的吸收；生物结皮层养分输入有结皮生物代谢、降尘、风沙流和植物分解矿化作用等多(来源：A73e3B3eC论文网www.abclunwen.com)种途径，但生物结皮层的颗粒物质来源主要是近地表风沙流，而不是大气降尘；生物结皮层覆盖对0-5cm土层自然含水量有一定的保护作用，并影响降水向深层渗透，不能有效的阻止表层水分的蒸发进程；研究表明采取人工促进技术能够在流动沙丘上形成生物结皮层，实现流动沙地的快速治理。

Results demonstrate that climate fluctuations recorded by the two boreholes correspond to the marine oxygen isotope stages. Thick layer of coarser grained fluvial deposits and the third layer of "hard mud" were deposited in the study area during MIS 6, reflecting a cold climate. The sediments became fine-grained and indicate a coastal marsh depositional environment during MIS 5. The second layer of "hard mud" was deposited during MIS 4. Fine-grained coastal marsh deposits dominated in the study area during early MIS 3, while lagoon-beach ridges prevailed during middle and late MIS 3, forming a layer of silt and fine sand in the coastal plain. The MIS 2 strata are composed of a typical sedimentary sequence with coarse grain in the lower section and fine grain in the upper section, i. e. yellowish grey or brownish yellow silt and brownish yellow or dark green "hard mud", respectively.

研究结果显示，两孔记录的古气候波动可与深海氧同位素曲线进行对比：对应于深海氧同位素曲线第6阶段(MIS6)，堆积厚层的河道相粗颗粒沉积及第3硬土层，反映当时气候寒冷；第5阶段(MIS5)，为滨海湖沼沉积，沉积物的颗粒显著变细；第4阶段(MIS4)，本区形成第2硬土层；第3阶段(MIS3)的早期，本区也发育滨海湖沼沉积，中晚期则形成潟湖—砂坝体系，在滨海平原区普遍发育粉、细砂层；第2阶段(MIS2)，地层由下粗上细的沉积序列构成，下部为黄灰、棕黄色粉砂，上部则为棕黄色或暗绿色硬粘土。

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。

Which layer of the 7 layer model provides services to the application layer over the Session layer connection?

在7层OSI模型中为应用层连接会话层及提供服务的是那一层？

With the author's study of related issues, this paper focuses on some key technologies of the physical layer, the data link layer and the network layer. The physical layer protocol is based on the hardware abstraction provided by TinyOS, and adopts split-phase mechanism for transmission.

本文研究了基于TinyOS操作系统的新型无线传感器网络通信协议栈GHPS(Generic Hierarchical Protocol Stack)，着重设计并实现了该协议栈中物理层、数据链路层及网络层的一些核心关键技术和功能模块。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。