难点
- 与 难点 相关的网络例句 [注：此内容来源于网络，仅供参考]
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Japanese honorific is Extremely difficult to study.
日语的敬语是学习日语的难点之一。
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The Japanese honorific is always the difficult point for Chinese learners.
日语敬语学习一直是困扰中国学习者的难点。
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Chapter 1 introduced the significance and the current status of studying on the horizontal bar gymnastic robot and explained the difficulties and characteristics of this subject.
本文第一章介绍了单杠体操机器人的研究意义和研究现状，以及分析了本课题的难点和特点。
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This paper makes an attempt to explore these hot, difficult and key problems.
本文大胆尝试对这些热点，也是难点和关键问题作一些探索。
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Are currently the key, hot and difficult spot in the robot study field.
是目前机器人研究领域中的重点、热点和难点。
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Image matching, image processing is difficult, but also the research hotspot in recent years.
详细说明：图像的匹配，是图像处理的难点，也是近几年研究的热点。
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It treatisedespecially new request of howff of new times ,the nodus and essentiality of landscape creativity.
特别是对新时纪住宅的新要求、景观创新的难点、重要性进行了论述。
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The choice of good parameter of water pollution model is a nodus in hydraulics.
水质模型的参数率定一直是水质预报的难点。
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As one of the most difficult topics of rock mass hydromechanics, seepage free surfece plays an important part in slope stability researches.
渗流自由面是岩体水力学研究的重点和难点，也是边坡稳定性综合研究的重要内容。
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Because of its characteristic of extensive sources,serious toxicities,high-level pollution and long-term duration, formaldehyde is considered to be one of the most common pollutants. And the study of formaldehyde has become a lot and difficult spot of environmental and hygienical fields.
甲醛以其来源广，毒性大，污染水平高，污染时间长等特点，已经成为我国最主要的室内空气污染物之一，也是世界环境卫生领域的热点和难点。
- 推荐网络例句
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In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.
。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。
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Go down on one's knees;kneel down
屈膝跪下。。。下跪祈祷
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Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.
Nusa Dua ：豪华度假村，冲浪和潜水，沙滩，水晶般晶莹剔透的水，网络冲浪。