无特性的

The structure and characteristic of the band-pass filter are analyzed,and parameters of components are calculated,and a Back-EMF zero-cross detection circuit for BLDC motor sensorless control is designed in this paper.

分析了带通滤波器的结构、幅频和相频特性，计算获得了符合要求的参数，设计了由带通滤波器构成的无刷直流电动机无位置传感器控制用反电动势过零检测电路，并给出了该检测电路的简化型式。

HPCA was measured by using a one-stage plasma recalcification clotting time.Results The peripheral blood lymphocytes from rheumatic carditis patients can stimulate the procoagulant activity of human heart tissue cell in vitro.But the sera of rheumatic carditis patients and group A streptococcal cell membrane can not increase HPCA.

结果 患者的外周血淋巴细胞能使HPCA明显升高；静止期风心病、风湿性关节炎、其他疾病对照组及健康对照组患者的外周血淋巴细胞均无此特性，迁延活动型风湿性心脏炎患者的血清及A组乙型溶血链球菌膜抗原对HPCA也无直接影响。

Due to the discreteness of transformer taps and the switching of shunt capacitance/reactance banks, the rigorous reactive power optimization is the problem of Mixed-Integer Nonlinear Programming involving both discrete and continuous variables.

在电力系统无功优化过程中，由于有载调压变压器分接头的存在和补偿电容／电抗器分组投切的离散特性，使得严格意义上的无功优化问题成为一个离散变量和连续变量共存的混合整数非线性规划(Mixed-Integer Nonlinear Programming，MINLP)问题。

The shorter internodes and out-growth of anxillary buds found in antisense LeETR2 and leaf epinasty observed in antisense LeETRl plants are phenotypes consistent with the negative regulation model of ethylene.

5植株衰老和叶片脱落延迟，花瓣脱落也明显的延迟，在转反义LeETR1基因番茄的果实成熟特性被明显改变，表现在乙烯释放高峰延迟，果实颜色出现变异，以及和成熟相关的酶活性的改变，然而，转反义LeETR2基因的果实的成熟特性与对照相比无明显差别。

The mechanical behaviour of anchorage foundations is then further studied by comparing that of a caisson without anchors. Meanwhile, the distribution of moment on anchor is analyzed; and the influence of anchors' embedded depth on the bearing capacity is studied.

在此基础上，通过无根键沉井基础和有根键沉井基础的受力特性对比，分析了根式基础的受力特性，对根键上的弯矩分布型式进行了研究，并探讨了根键沿深度位置分布对根式基础承载力的影响。

Due to the causes such as polyploidy and self-incompatibility, the plants of Paspalum, with the greatest number of apomictic species, show much complex and various reproduction characteristics.

由于多倍体的存在及有性生殖的自交不亲和等原因，雀稗属植物表现出复杂多样的生殖特性，是禾本科中具备无融合生殖特性种类最多的属。

Due to the causes such as polyploidy and self-incompatibility,the plants ofPaspalum,with the greatest number of apomictic species,show much complex and various reproduction characteristics.

由于多倍体的存在及有性生殖的自交不亲和等原因，雀稗属植物表现出复杂多样的生殖特性，是禾本科中具备无融合生殖特性种类最多的属。

Based on the dynamic characteristic of an original model, the transform analysis of undamped system equation is performed with the frequency characteristic functions at designated modification freedoms, and the general expressions of local mass and stiffness parameters are derived.

该方法根据原结构模型的动态特性，利用与调整点自由度相关的频率特性函数，通过对无阻尼自由振动方程的推导，给出结构局部质量或刚度调整的通解。

The AIDS "Immunotoxin" After the invasion of the human body, although the acute infection phase, there may be a short warm or hot and humid evil some of the features, but the subsequent asymptomatic period and the AIDS period, are mainly manifested in the characteristics of injury in the body upright.

而艾滋病&疫毒&侵袭人体以后，虽然在急性感染期可出现短暂的温热或湿热邪气的一些特性，但其后的无症状期及艾滋病期，则主要表现为损伤人体正气的特性。

Through indoor conventional experiment, saturation test and non-confining compression strength test , research has been put to the physical and mechanical characteristics of the loess consolidated by Na_(2)SiO_(3) solusition, a Na_(2)SiO_(3) composite body, and the basic mechanical parameters of the loess near the Daming Palace Han Yuan Temple have been acquited.

通过室内常规实验、浸水实验、无侧限抗压强度实验，对Na2SiO3溶液加固的黄土-Na2SiO3复合体的物理力学特性进行了室内实验研究，取得了大明宫含元殿窑址附近黄土-Na2SiO3复合体的基本力学特性参数，可供该地区其他类似条件的遗址加固设计参考。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了