中弱

The existence ofpolar nanoregions dramatically influences the extrinsic dielectric nonlinearityof paraelectric phase. 5 Slow relaxations of field induced piezoelectricresonance of paraelectric barium stannate titanate were observed after eitherapplying or removing a DC bias field. This phenomenon is attributed to slowspace charge dipoles formed by injected homocharges and validated by theobservation of a negative piezoelectric constant. Isothermal study ondielectric constant and discharging current after application or removal of astep field were performed. The relaxation laws in ferroelectric andparaelectric phases are different. The transportation of homocharges arebelieved to be responsible for the strong relaxation behavior in paraelectricphase. Domain wall can trap space charges thus the relaxation in ferroelectricphase is relatively weak. Abnormal phenomena, such as slim-waisted hysteresisloops, abnormal C-V curves and clockwise reversible hysteresis loops observedin barium stannate titanate ceramics, were attributed to pinning of gatheredpoint defect on domain walls.

5研究了直流电场施加和撤除引起的钛锡酸钡顺电相场诱压电谐振慢弛豫现象，认为这是同极性空间电荷注入形成空间电荷慢偶极子导致的，观察到的负压电常数证实了这个观点；研究了等温条件下阶跃电压作用下介电常数和放电电流的慢弛豫现象，发现钛锡酸钡陶瓷的铁电相和顺电相呈现不同的宏观性能时间依赖规律，认为是同极性空间电荷的输运过程导致了顺电相样品呈现强的弛豫行为，铁电相中存在畴壁捕获空间电荷的机制因而其弛豫行为较弱；研究了钛锡酸钡陶瓷中束腰电滞回线、反常 C-V 曲线和顺时针可逆电滞回线等反常现象，将其归因于点缺陷的聚集对铁电畴畴壁的钉扎作用，多次电场循环有助于解除这种钉扎状态，减弱反常特征。

According to the traditional concept, the shielded signal wire should be applied in low voltage circuit to lower the interference and its screen connected to earth at both ends to weaken the electromagnetic coupling effect.

在传统的概念中，为降低弱电回路的干扰，宜采用带屏蔽层的信号线，且屏蔽层应两端接地，以削弱电磁耦合的影响。

The numerical results of different magnetic permeability of the casing pipe show that in crosshole environments, non-magnetic or low-magnetic steel pipe is superior to magnetic iron pipe.

不同磁导率金属套管的电磁响应分析表明，电磁测井中，采用非磁性或弱磁性套管要优于一般的铁磁性套管。关键词金属套管井，有限尺寸线圈，电磁测井响应

For the calculations of Mon (n= 2-55) clusters, the linear and planar clusters have a strong tendency to form diatomic pairs to assemble short-long bonds alternation structures which makes them like non-metallic clusters, the short bonds are characterized as covalent non-metallic bonds and the long ones are much like weak metal bonds.

本文首先计算了各种不同结构的Mon（n=2-55）原子簇，发现一维和二维Mo原子簇表现出了一定的非金属原子簇的性质，簇中原子有明显的成双原子对趋势，致使原子簇具有短-长键交替的几何结构，短键和长键分别呈现强共价键和弱金属键的特性。

REE geochemical characteristics and their systematic changes in the sedimentary section suggest that there existed a process of ingression-regression in this area in the early Cambrian period. The black shale series resulted from the mixing between normal seawater sediments and hot seawater sediments and were deposited under the transitional condition from reduction to semi-reduction and weak oxidation in a shallow-sea clinoform zone of a relatively deep sea environment with dry climate.

稀土元素地球化学特征反映该区早寒武世曾发生过一次明显的海侵-海退过程，黑色岩系为正常海水与热水混合沉积的产物，形成于缺氧还原状态过渡到半还原-弱氧化状态的过程中，沉积环境为干燥气候条件下相对较深的浅海斜坡环境。

A Research on the Reliability Calculation and Safety Assessment Methods of Spherical Tank with defects The quantitative risk evaluation method of tower equipment Crack growth prediction in a graphite sample under mixed mode loading Rock tensile strength test using disc type specimens-An investigation on sub-sized specimens Deformation Testing of the Round-link Chains for the Scraper Conveyer Based on the Weak Magnetic Testing Technology

研究计算的可靠性和安全性评估方法球罐缺陷定量风险评估方法，塔设备裂纹预测中的石墨样品混合装岩石抗拉强度试验用圆盘式标本的一项调查就分大小的标本变形测试圆圆链刮板输送基于弱磁检测技术还有什么不明白的地方再问我。谢谢！！！

A practical imune-procedure of applying bivalent attenuated vaccines against Duck Plague and Duck Viral Hepatitis precaution DP and DVH in scale duck farms was reported in this peper.

本文报道了在规模化养鸭中应用鸭瘟鸭病毒性肝炎二联弱毒疫苗防制鸭瘟和鸭病毒性肝炎的适用的免疫程序。

The sand grains migrate as the uniform suspension pattern in the vertical pipe,while sand grains move as the un-uniform separate beds in the inclined pipe.

同一粒径砂粒在不同倾斜携砂管中的临界流量表明，携砂管倾斜60°时，携带能力最弱，携砂管垂直时携砂能力最强。

In one of two weak stretches in an otherwise stupendous tournament, Ulrich failed to either complete a runout or gain an edge in a safety battle, and Mekari improbably took seven straight and an improbable 11-9 win.

在一两个弱伸展在一否则了不起的比赛中，乌尔里希未能要么完成跳动或取得优势，在一个安全的战斗中，和铭大大了七连败，一琢磨11月9日获胜。

The result shows that the location of sample to resonance cavity is the strongest affecting and factor followed by treating time, microwave energy level and gas pressure.

结果表明：在影响蚀刻作用的诸因素中，样品位置的影响最显著，处理时间、微波功率其次，而系统压力的影响最弱。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。