差等

However, It has long been known that ROIs, particularly on functional images, is time-consuming, subjective, irreproducible and prone to operator bias.

这对肿瘤，神经精神疾病以及认知的研究领域都有应用，可是由于受到图像分辨率和主观因素的影响，ROI存在着解剖区域勾画不准、主观性强和重复性差等缺点。

The system applies the popular DBF and ORACLE,solves many questions such as inefficiency,low reliability during the management land information,fulfills the scientific,modern,standard and latticing management,gets the aim to share information and save cost,and meets the requirement of the dynamic management and the application on oilfield land information.

该系统应用流行的 DBF和 ORACLE数据库管理，解决了土地信息管理工作中存在的效率低、可靠性差等诸多问题，实现土地信息管理工作的科学化、现代化、标准化、网络化，达到信息共享、节约费用、降低工作强度、提高工作效率的目的，满足了油田土地信息的动态管理与应用要求

In view of the unique and complicated completion method for gas drilling, and high cost and low reliability of DDV and leakless inflatable screen pipe, the stuffed screen pipe with temporary plugging agent was developed autonomously.

针对气体钻井完井方式单一、完井程序复杂、采用套管阀或非透式可膨胀筛管完井技术成本高、可靠性差等问题，自主研发了利用暂堵剂密封筛管的实体筛管完井技术。

In this paper, a kind of moslemic beef sausage, which preserved beef flavor and covered up the disadvantage of palatability of cattle back fat, was developed using beef and cattle back fat as raw materials.

采用牛肉和牛背脂做原料，研究开发出清真牛肉香肠，产品既保持了牛肉原有风味，又掩盖了牛油的膻味和适口性差等缺点。

New planted ramie often have defects of fewer efficient plant numbers, many of high-branches, difficult to peel bast, low yield, bad fiber quality and so on. Aiming at all these shortages, the cuttage breeding technology of fine varieties and high-yield and good-quality cultivating method, breeding Cutting seedling with several low-branches, planting deeply appropriately, ridging to foster rootstocks when intertilling, was brought forward.

针对苎麻新麻有效株少、高位分枝多、韧皮剥制难、原麻产量低、纤维品质差等问题，提出了培育携带多个低位分枝的扦插苗，麻苗移栽时适当深植，辅以新麻中耕时起垄培蔸的苎麻良种扦插繁殖新技术与新麻高产优质栽培方法。

The rist factors for suicide included history of family psychiatric or suicide,and a poor social support,et al.

再次出现自杀的因素有阳性家族史、社会支持状态较差等。

In order to solve the problems including great loss in oilgas collection transport systems and poorly separative results between oil and gas, a high effective three phase separator was used.

为解决油气集输与处理系统存在的油气损耗大，油、水分离效果差等问题，采用了高效三相分离器。

This kind of tension makes the rate of recessive discontinue one's studying of the unripe " such as " difference later and later not only, make unripe " waits to slip stage by stage in " those who enter recessive discontinue one's studying is sloughy, and make " classy those who give birth to " to make this group is potential make a part.

这种张力不仅使&差等生&的隐性辍学程度越来越深，使&中等生&逐步滑进隐性辍学的泥沼，而且使&优等生&成为这个群体的潜在构成部分。

Because the traditional PID exists the shortcomings of unadjustment of parameters and inferior real time nature,the Genetic BP neural networks PID control algolithm is proposed in the dissertation. The Genetic algorithm and BP neural networks are introduced to optimize three control parameters.

由于传统PID控制算法存在控制参数不可调，控制系统实时性差等缺点，本文提出遗传BP神经网络PID控制算法，用遗传算法和BP神经网络对PID控制参数进行在线优化。

A new ship propulsion method, integrated hydraulic propulsion, was developed to solve following problems as ship tends to have high speed, large scale and large power, its main engine become larger and larger; engine design and cabin arrangement become more and more difficult; ship maneuverability become unflexible as well.

为解决船舶在向大型化、快速化方向发展时所带来的主机设计困难，机舱布置不合理以及机动性差等问题，提出船舶综合液压推进系统。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。