双线的

Both single and double-stable limit cycle flutter states are found in wind-tunnel test. And the conclusion is proofed that the equivalent linearization based on the second order asymptotic solution of KBM method is more accurate than that based on the first order one, which is equivalent to the conventional harmonic balance method.

风洞实验时，吹出了单、双稳定极限环颤振情形，并验证了基于KBM二次渐近解的当量线化分析比KBM法一次渐近解的当量线化分析要精确一些的结论。

On the other hand, the linear deviations of the active voltage biasing circuit with Bipolar Transistor or FET were at most 7%, and at most 3% respectively.

结果：在阳极电流为50 μA，电阻型光电倍增管偏置电路的线*偏离度已达40%，而用双极*晶体管或场效应晶体管的有源偏置电路的线*偏离度分别为≤7%，≤3%。

In a network that uses twisted-pair cabling, one pair is used to carry the transmitted signal from one node to the other node.

使用双绞线电缆的网路，一对线用来载送从一节点到其他的节点的传送信号

Combine with the analysis of the effect that caused by the shielding of topography and the conditions when lightning occurred on the top of the transmission tower, this paper bring forward a synthetical scheme that on the AnNan overhead transmission line, can use long life resistance reducer to reduce the ground resistance of the transmission tower,set up a shielding pull- line on the body of some tower,set up lightning arrester and take unbalance insulated method to improve the level of the line's ability of preventing lightning.

结合地面屏蔽效果分析和雷击杆塔塔顶情况分析，提出了在安南线采用降低杆塔冲击接地电阻、对部分杆塔塔身安装防雷拉线、加装线路避雷器、在双回路共架杆段采用不平衡绝缘配置等措施来提高安南线耐雷水平的综合方案。使用长效降阻剂，降低杆塔的接地电阻，这是提高线路耐雷水平、降低雷击跳闸率的有效措施。

The spin configurations of a two - sublattice system has been studied by mean field theory. It is found that at the absence of magnetic field, there exist two different linear and non-linear spin configurations.

用分子场理论研究双亚点阵系统的自旋织构，发现在零磁场条件下存在共线和非线两种不同的自旋织构的相图。

Secondly,two-photon entangled pair is produced in noncollinear direction.Wediscuss the influence of fourth-order interference with three different length crystalsand with different frequency distribution of interference filters.

其次，利用飞秒脉冲II型参量下转换在非共线方向产生偏振纠缠的双光子对，我们利用三块不同长度晶体分析晶体长度以及探测谱线宽度对纠缠四阶干涉的影响，实验选用长度分别为0.1mm、0.5mm和1.0mm的BBO晶体。

Methods Control the methanol feeding in growth phase of Hansenula polymorpha by online monitoring. In induction phase, the expression levels of HBsAg when the methanol feeding were controlled by DO-Stat/pH-Stat method and by offline gas chromatography, as well as those when only methanol was fed and glycerol and methanol were fed alternatively, were compared.

在细胞生长阶段采用DO/pH线测量的控制方法，使酵母细胞密度达到一个较高水平，诱导期比较DO-Stat/pH-Stat法和离线检测甲醇两种控制流加甲醇的方法，同时也比较用甘油和甲醇双碳源间断流加法与单纯流加甲醇法对目的蛋白表达的影响。

It has many advantages such as good conductivity, anti-corrosive, high transmission property and very high strength as steel, ACSR/AS is made of ACSW as reinforcing core and A1 wire as conductive element.

铝包钢线是一种将铝连续均匀包覆在钢芯上的双金属线，它兼有导电性能好，耐腐蚀，高频传输性能好以及钢的强度高等优点。

The proposed method is performed in abc phase-coordination,so it can be applied to transposition or untransposition lines(single-or double-cir cuit lines)and the non-diagonalizable situation of produce matrix ZY .

本文方法在abc相分量上进行计算，所以适用于均匀换位或不换位的单回线、双回线和线路传播常数矩阵ZY不能对角化的情况。

The dissertation takes the industrial belt spot - axis system theoretical model, the binuclear structural theory pattern, Japan near the sea industry belt establishment theory as the basis, the analysis regarding the East LongHai Industry Belt regional economic society development, and carry out the theoretical analysis.

论文以产业带的点-轴系统理论模型、双核结构理论模式、日本临海工业带形成理论为依据，在开展沿东陇海线区域经济社会发展现状分析基础上，进行了沿东陇海线产业带形成的分析。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。