有缺点的
- 与 有缺点的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Solar cell of silicon -membrane type is therefore regarded as the development direction for the future. Solar cell of noncrystal silicon -membrane type will play it s important role, with continual betterment. And solar cell of nanosilicon membrane type will also take an main part because of it s advantage.
非晶硅薄膜太阳能电池虽在性能上具有不少的缺点,但是随着薄膜沉淀技术的提高以及工艺上的不断改进会使它在太阳能领域在有一席之地,后起之秀纳米硅薄膜太阳能电池依靠其本身的优越性以及纳米技术的进展将会成为一个重要的竞争者。
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The traditional snake model only applies the features of the curve, which did not adequately apply the feature of the image. But in the algorithm, the corners of the detected object is detected based on the MIC operator; the initialized curve is set based on the corners; the object is fitted according on the snake model. The traditional snake model highly depended on the initialized position of the curve and can not get well fitted effort for the image which has the corners and concaves. The proposed algorithm preferably solve the drawbacks.
传统的snake算法只考虑曲线本身的特征,并没有充分的利用被拟合图像本身的特征,而此算法首先检测被拟和目标的角点,然后以这些角点为基准进行曲线初始化,最后根据snake算法进行目标拟和;较好地解决了传统snake模型对初始化位置敏感、对有角点和凹陷的图像收敛效果差的缺点。
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The active contour model is a powerful image segmentation method for representing image contour, but it has three severe difficulties. First, active contour model highly depends on its initial position. Second, active contour model lacks the ability to handle boundary concavities.
动态轮廓模型(active contour model; ACM)是一种功效强大的影像分割描绘方法,但却具有三个严重的缺点:第一、此模型非常依赖待描绘图形的起始位置,第二、此模型缺乏进入图形凹陷处的能力,第三、此模型有停滞在局部能量极小值的倾向。
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Up till now, the main pump types used in CPB are roller pump and centrifugal pump, but these two kinds of pump both have their own disadvantages. When roller pump is used, the blood cells will be destroyed severely and when the pipeline is kinked, air will be transported into body or the conduit will be broken. The function of centrifugal pump is better than that of roller pump, but now, this kind of pumps are all designed for adults, and when the flow rate is low, the function of protecting the blood is not significant.
目前,滚轴泵和离心泵是心肺转流中的常用泵型,但是滚轴泵对血液有形成分的破坏较严重,而且有引起泵管的崩脱和大量气体泵入体内的危险性;离心泵虽然在性能上优于滚轴泵,但目前的离心泵大都是为成人设计的,而且在低流量时在血液破坏方面的优点不明显,此外它们还有一个共同的缺点就是预充量均大,因此两者都不适合在幼婴儿体外循环中应用。
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The management that try a database, especially the school try a database has to have great capacity, the category have another of characteristics, the normal regulations management contain work have great capacity, search difficulty, not easy more recent weakness, try a database the management system can to try an execution science of management, make use of the modern computer function strong, operate the quick advantage of speed, carry on the concentration and have the preface, valid management towards trying, renew the convenience and search fast, a winding is vivid and can also pass the printer after set book be over to print directly try book, lowered the labor strength consumedly, need with the password entry system, have the certain safety.
论文价格:30元,程序价格:30元全套价格:原价60元,会员价50元摘要试卷生成的管理,特别是学校的试卷生成具有量大、种类多的特点,常规管理有工作量大、查询困难、不易更新的缺点,试卷生成管理系统可对试题实行科学的管理,利用现代电脑功能强大、运算速度快的优点,对试题进行集中、有序、有效的管理,更新方便、查询快捷、组卷灵活还可在组卷结束后通过打印机直接打印成试卷,大大降低了劳动强度,需用密码登录系统,具有一定的安全性。
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The management that try a database, especially the school try a database has to have great capacity, the category have another of characteristics, the normal regulations management contain work have great capacity, search difficulty, not easy more recent weakness, try a database the management system can to try an execution science of management, make use of the modern computer function strong, operate the quick advantage of speed, carry on the concentration and have the preface, valid management towards trying, renew the convenience and search fast, a winding is vivid and can also pass the printer after set book be over to print directly try book, lowered the labor strength consumedly, need with the password entry system, have the certain safety.
论文 字数:12970页数:48 带程序)摘要:试卷生成的管理,特别是学校的试卷生成具有量大、种类多的特点,常规管理有工作量大、查询困难、不易更新的缺点,试卷生成管理系统可对试题实行科学的管理,利用现代电脑功能强大、运算速度快的优点,对试题进行集中、有序、有效的管理,更新方便、查询快捷、组卷灵活还可在组卷结束后通过打印机直接打印成试卷,大大降低镣动强度,需用密码登录系统,具有一定的安全性。关键词:分析,设计,测试,试卷生成系统,调试,查询,打包
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But it has some shortcomings. Connecting weld of doubler strake is directly welded on plating strengthened, in this way welding fluid fuse with plating strengthened such as deck plating or bottom plating, and then connecting of doubler strake fuse with deck plating or bottom plating strengthen. So breakage like crack of connecting of doubler strake may immediately destroy deck plating or bottom plating strengthened, which became of navigational accident.
但是,增设复板条来提高船舶总纵强度的方法有其缺点,每段复板条之间的对接焊缝是直接在被加强的板上施焊,焊缝就会溶入被加强的甲板或船底板,使得复板条对接接头与被加强的甲板或船底板发生粘连,这样,复板条对接接头的开裂等破坏就会直接引起船舶被加强的甲板或船底板的破坏,从而导致海难事故。
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As a kind of material for particleboard, it's disadvantages was mach content in SiO and weater extract,but low in fiber content and natural formed wax on the surface which made it difficule to manufacture standard product by urea formaldehyde resin.
摘 要:本论文分析了麦草原料的结构,作为刨花板原料,麦草的缺点是二氧化硅的含量高,抽提物含量高,纤维细胞含量低以及表面有自然形成的蜡质,用脲醛树脂胶难以制造出合格的产品。
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With the increase of temperature, the friction coefficient of the composition materials increased and the wear rate of the composition materials decreased.PPTA pulps in the friction materials overcome the shortcoming of asbestos that has high wear rate at high temperature.
结果表明,3种芳纶浆粕增强的摩擦材料都具有优良的摩擦磨损性能,特别是随着温度升高,摩擦系数有较大提高的同时,磨损率明显下降,克服了石棉增强的摩擦材料在较高温度下磨损率较大的缺点。
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CO2 gas shielded arc welding is there in the early 50s as a fusion welding method, have been quick to promote the use, has become an important method of fusion welding, steel structure is applied in up to 45%, widely used in vehicle manufacture , shipbuilding and various mechanical structures, in the company practice, I for CO2 gas shielded welding skills and welding operations carried out several shortcomings of research, I and some technical discussion, with some of my experiences.
CO2气体保护焊是在50年代初出现的一种熔化焊方法,现已被迅速的推广使用,已经成为一种重要的熔化焊方法,现在在钢结构中应用达45%,广泛运用于车辆制造,船舶制造和各种机械结构,在公司实习中,我对于CO2气体保护焊的操作技巧和焊缝缺点进行多次研究,我和一些技术人员的讨论中,有了一些自己的体会。
- 推荐网络例句
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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。
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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
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。