低等

Lower vascular plants having dichotomously branched sporophyte divided ''.

低等脉管植物，有二岐的孢子体，分裂为气芽和根茎。

To solve the problems less valid data in thermal infrared imager, uneasy dipartite corrosion area in image and lower the signal to noise ratio which happened in detection of structure parts hidden corrosion by thermal wave imaging, the improved PCA based on the wavelet was presented.

针对飞机结构隐藏腐蚀热波成像检测中出现的热像仪中有用数据较少、图像序列中腐蚀区域与非腐蚀区域对比不明显、信噪比较低等问题，提出了基于小波变换的改进PCA算法。

In view of problems of incomplete kind and low reliability of protection of mine belt conveyor, the paper designed an integrated protection system of belt conveyor, analyzed common faults of belt conveyor, introduced hardware structure and software design of the system, identified measuring methods of belt faults of speed, temperature, fog and disalignment.

针对现有大型矿井胶带输送机保护种类不全、可靠性低等问题，设计了一种胶带输送机综合保护系统，分析了胶带输送机的常见故障类型，介绍了系统的硬件结构和软件设计，确定了胶带速度、温度、烟雾、跑偏等故障的检测方法。

There are many problems during the process of developing China's rural tourism, such as facial understanding of rural tourism conception and implication, the distemperedness of the management and the management system, the increase of the negative influence day by day, the singleness and coarseness of the product, the low culture level of the workers. These problems restrict the sustainable development of China's rural tourism at all.

但是，与国外相比，我国乡村旅游的发展仍处于初级阶段，在发展过程中存在许多问题，如对其内涵认识不足、管理与经营体制不健全、负面影响日益加剧、产品单一粗糙、从业人员素质较低等，这些问题从根本上制约了中国乡村旅游的可持续发展。

The third chapter analyzes major logistics problems of B2C, such as insufficient B2C logistics management personnel, high logistics cost and low efficience, etc.

第三章分析B2C物流主要存在问题，如B2C物流管理人才总量不足，流配送成本高和效率低等。

However,in actual judicial pratice, it is in vogue because of the regional protectionism and the branch protectionism,which makes the faultily of the managemeng system,low quality of carrying out personnel business,difficult to look for the operator and to search for property."Difficult enforcement of judgments"includes seeking and carrying out the underlying asset and difficult to assist an operator.

然而，在司法实践中，因地方保护主义和部门保护主义的盛行，执行管理体制不健全，执行人员业务素质低等原因，造成被执行人难找，被执行财产难寻，协助执行人难求以及执行标的物难动等&执行难&、&执行乱&现象。

The PCBN cutting tool, with many advantages such as good wear resistance, thermal and chemical stability, low friction factor and so on, has incomparable superiority when hard machining ferreous materials, instead of grinding, is becoming a new kind of finish machining way.

PCBN刀具具有硬度高、耐磨性好、热稳定性和化学稳定性好，导热性良好以及摩擦系数低等优点，在硬态加工铁系材料时具有无可比拟的优越性，正逐步取代磨削加工而成为一种新的精加工途径。

There are problems such as inadequacy, tmeven distribuhon in time and area, serious pollutinn, serious soil erosion,overuse of ground water and fow efficiency of the utilization of water oourees.

污染严重、水土流失严重、地下水的过度利用、资源利用率低等问题。

Results The abnormality rates of CT, MRI and EEG were 53%, 66% and 92%, respectively. The abnormal EEGs were classified into diffused slow wave in 16 cases, frontotemporal slow wave in 5 cases and periodic wave in 5 cases.

头颅CT、MRI、病毒学检测和脑活检对诊断HSE有重要作用，但这些检查也有其局限性和早期检测敏感性低等缺点，而且不能及时和反复使用。

Compared with traditional wind turbine, the direct drive wind turbine manufactured by the company owns distinct advantages of high efficiency, gearless, reliable system, easy maintenance, low noises and good quality of grid connection. This type of product represents the developing trend of international wind turbine technology, and it is popularly installed in Netherlands, Finland, Germany, Japan, and Taiwan of China as well as Northern part and coastal area of China, which enjoy high evaluation from customers.

湘电风能制造的兆瓦级直驱式风力发电机组与传统机型相比，具有系统可靠、转动部件少、无齿轮箱、运转噪声小、风能利用效率高、上网电源质量好及维护成本低等明显优势，代表了世界风电技术的发展趋势，在我国各地风场和台湾地区，以及荷兰、芬兰、德国、日本等国家得到了广泛的应用，赢得了用户的高度评价。

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。