无特性的

Week. Conclusions The S1 area brain glioma model established by this method in rats had the same characters as human brain glioma. The tumor growth period was short and the subsisting period was stable without extracerebral metastasis and extracranial extension. This model is suitable for laboratory and treatment study of brain gliomas.

该方法建立的S1区脑胶质瘤模型具备与人脑胶质瘤生长相似的特性，肿瘤形成时间短，生存期稳定，且无脑外转移和颅外扩散，适合各种脑胶质瘤实验治疗研究。

Firstly, based on the principle of jointless track circuit and the transmission of four-terminal network, parameter models of rail line and cable was established, and their frequency characteristics were analyzed.

首先，本文在简要介绍无绝缘轨道电路工作原理和四端网传输原理的基础上，建立钢轨线路和传输电缆的参数模型，并分析其频率特性。

In this paper, the thermosyphoning characteristics of LiBr pumpless absorption solar refrigerator under the adiabatic slug flow condition was studied with application of the fundamental theories of two-phase flow, solution thermodynamics and absorption refrigeration cycle.

本文应用两相流、溶液热力学和吸收式制冷循环的基本理论，对无泵LiBr吸收式太阳能制冷机中热虹吸泵在绝热弹状流工况下的热虹吸特性进行了研究。

Meilan also is attempting to find ways to produce trees that are reproductively sterile so they are unable to transfer introduced traits to wild trees.

米兰同时也在试图寻找方法培育无繁殖能力的树以阻止它们将引入的特性传给野生树木。

The studies on biological characteristic revealed that this fungus could grow and sporulate under dark or continuous illumination, the optimal illumination condition for growth of mycelium was alternant illumination and darkness facilitated spotulation.

病原菌生物学特性研究结果表明，在有无光照或连续光照的条件下病菌均可生长和产孢，光暗交替最有利于菌丝的生长，黑暗条件下促进病菌产孢。

Methods Human umbilical cord blood samples were obtained sterilely from healthy parturients. MSCs were isolated by lymphocyte separation medium (density 1.077g/ml), MSCs were obtained by adhere culture. The surface antigen expression of MSCs was detected by flow cytometry.

将无菌条件下采集健康产妇脐带血，用相对密度为1.077g/ml的人淋巴细胞分离液分离脐血单个核细胞，利用间充质干细胞贴壁生长的特性获得MSCs，流式细胞仪检测其表面抗原标志。

Based on the undirectional nature of Bluetooth and its characteristic of no need to aim at straight line in transmitting data, the master device can transmit data to slave devices more accurately.

蓝芽协定可以架构个人随意网路，以本身为master，利用蓝芽无方向性，也不需直线对准的特性，来传输资料，可以更加准确的传给其余slave装置。

Based on the gap acceptance theory and queuing theory, traffic characteristics of left-turn vehicles on the unsignalized T-intersections is analyzed with the probability theory.

以可接受间隙理论和排队论为基础，利用概率论的方法，对无信号T型交叉口左转车的交通特性进行分析。

Regarded unsignalized intersection as research object, Poisson distribution was introduced to describe the arrival characteristic of vehicle flow based on the analysis of traffic flow operation character.

以无信号控制平面交叉口为研究对象，在交通流运行特征分析的基础上，用泊松分布描述车辆的到达特性。

Methods Using a combinatorial approach of enzymatic digestion and mechanical separation to allow isolation and culture of GER cells from P1 rat cochleae.

方法取生后1d大鼠耳蜗，利用机械分离和酶消化相结合的方法分离出纯GER细胞，分别于无血清和含10％胎牛血清的DMEM培基中进行培养，观察细胞生长特性，并对培养物进行溴脱氧尿苷、鬼笔环肽、Z01、钙视网膜蛋白及肌球蛋白VIIa免疫组化鉴定及扫描电镜观察。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。