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Leastsquare method and Lagrange's interpolation formula see their applicationsfor fitting fore-and-aft lines-whose aim is to calculate the intersection point ofequivalent inclined waterline-and differences. In order to replace theinconvenient alternate conduct of drawing and calculating, improvement hasbeen introduced into the paper which means all work can be done bycomputer. Capacity calculation cannot be done without boundary layer build-up. Fit every area curve and area moment curve is necessary because ofinterpolation.

在第二章中，给出了B样条函数的数学表达形式，推导了B样条曲线下所围面积、面积矩公式；讨论了最小二乘法和拉格朗日插值法的数学形式，并在拟合船体型线上给出首、尾轮廓线的具体实例，对比不同方法进行拟合的差异，其目的是为了求得与等体积倾斜水线的交点；而水线的确定改变了以往人工作图与计算交替进行的不足，尝试用计算机完全代替人工作图，以求有所改进；在舱容计算中，在至少包括舱室前、后壁的范围内拟合横剖面积、面积矩曲线，插值求得任一纵向位置处的剖面，以解决舱室边界条件。

It can be concluded from the experiment results that hatchery seed has lower genetic variation and large-scale hatchery seed releasing affects the genetic diversity of the natural population. The shrimp distributed along China coast in Bohai Sea and Yellow Sea may consist of more than one populations. The viral disease resistant ability of F. chinensis is proved to be genetically inherited and can be improved by genetic selection.

通过对实验结果的进一步分析认为：中国对虾人工育苗的过程使后代群体的遗传多样性下降，人工培育苗种的大规模放流影响了自然群体的遗传多样性；，分布于我国沿海的中国对虾可能由多个自然群体构成，还存在未被发现的种质资源；中国对虾抗WSSV病毒感染是由遗传决定的，选育可提高中国对虾对WSSV的抗性。

Aiming at the low productivity of manual painting, an advanced painting technology which might be suitable to the mechanical operation was adopted. A relevant action trajectories and law based on the artificial dynamic simulation of painting were gained . Meanwhile, logic action and manipulator function were designed, the gripper of which was promoted. Furthermore, several sand models synchronization gripper structure was analyzed, which achieved dipping and painting 8 sand models at the same time.

为了解决铸造砂型因人工上涂料效率低下的问题，在不同的上涂料方法中选择了适合机械操作的浸涂工艺，采用了基于浸涂的人工动态模拟，获得了完成相关动作需要的运动轨迹及其规律，进行了针对机械手功能和逻辑动作的设计，并对它的夹持功能作了优化改进，提出了多件砂型同步夹持的结构形式，实现了一次完成8件砂型浸涂的高效率操作。

Brief introduction: Based on foreign advanced PE clapboard enveloper/stacker automatic line, selecting the main procedure, this machine is designed to meet the need of domestic storage battery factories-- production without maintenance and only with clapboard enveloping function. It is easy to operate and safe to adjust. When use the machine, you should put the board on the pushing board and push to the middle part, they will go into the press roller at the same time, the interlaced veins make the plates closely together, then stack the plates. The machine can be adjusted according to user's requirement

简介：本机在国外先进的 PE 隔板包封配组自动线的基础上，选取了包封工序之精华，设计出了适应我们国内蓄电池厂生产免维护的需要，只具有隔板包封功能的比较实用的隔板包装机，为蓄电池厂生产免维护蓄电池提供了 PE 隔板包封极板的可靠手段，该机操作简便、运行调整可靠，使用时将极板放在推板上，人工将极板推到隔板中部，经压辊将夹有极板的隔板同时进入压辊、压辊的两边有压纹使隔板上下经交错的压纹牢牢的压在一起，隔板形成口袋的状、然后人工配组极板。

The study shows the effect of the students' experience after attending the competition on technological recognition. The students changed their recognition as followed: technology is not only artificial but also professional technique including the developing progress of artificial; technology creativity includes not only fabricative technology but also the learning of knowledge, the research of the materials and the choice and discussion of producing method; in the process of technology creativity, group discussion can brings different ideas and support emotion. The attending experience makes the researchers aware the continuity in technology education.

研究结果发现研究对象参加高中生高温超导磁浮创意竞赛之经验对研究对象之科技认知有所影响，在竞赛活动后其科技认知的改变情形包括：科技不只是人工产物，也是专业的技术，也包含了人工产物的发展过程；科技创新活动并非只是实作活动，也包含科技知识的学习、材料搜寻、设计和制作方法的选择与讨论；科技创新过程中，小组合作方式可产生不同的意见来源，以及彼此支持的力量；参赛经验让研究对象认为科技的延续必须要有市场也对科技的认知更加清楚。

The research on artificial nucleases has been one of the most active frontiers of biochemistry and molecular biology. The investigation on DNA and transition metal complexes as the potential artificial nucleases is the significant branch of bioinorganic chemistry, and is of important theory and application values.

人工核酸切割试剂的研究一直是生物化学和分子生物学最为活跃的研究领域之一，过渡金属配合物作为潜在的人工核酸酶与DNA的作用是生物无机化学研究领域的重要分支，具有很重要的理论价值和应用价值。

People who seek a glamorous tan through sun lamps may double their risk of developing common types of skin cancer, according to a new study that found the risk was highest for those who start at a young age.

一项新的研究结果表明，欲通过人工日照获得诱人的黑色皮肤的人们使自己患皮肤癌的风险倍增。研究还发现，那些从年轻时就进行人工日照的人的风险系数是最高的。

The steppe landscape is dominant but not apparent in its patch and area, and the percentage of the original vegetation of Stipa bungeana steppe is very low in the study area, which is apparently characterized by human disturbance. The diversity and evenness of patches in the study area are higher than those of the steppe landscape area, and the fragmentation and the isolation of the steppe are the highest. The landscape shapes of artificial arbor woods and cultivated lands are the simplest, and the landscape shapes of classical steppe and artificial shrub are in an instable stage.

结果表明：(1)草原景观在其斑块数和面积上虽然仍居首要地位，但其优势并不十分明显，而且该区原生植被本氏针茅草原只占很小的比重，呈现出非常明显的人类干扰特征；(2)研究区斑块的多样性程度和均匀度较高，而面积的多样性程度和均匀度较低，同时，典型草原的景观破碎度最大，景观分离度也最大；(3)景观形态上，人工乔木林和耕地的景观形态最为简单，典型草原和人工灌丛这2种景观类型还处于很不稳定的阶段。

From analyzing Shannon index in five different types of habitats, we discovered transect of crab ponds with reed behind the sea wall(artificial and half-aitificial wetlands) had the highest Shannon index, The results show that this type of habitat is very important to wintering waterfowls. The artificial and half-artificial wetlands are belong to trial regions within the sea wall, Now the situation of waterfowls in Chongming Dongtan is very dangerous .

目前对崇明东滩自然保护区的现状不容乐观，堤内的人工半人工湿地被划入实验区，崇明东滩不断进行的围垦活动，各种各样的地方人为干扰活动(偷猎鸟类、捕捉鳗苗、放牧、放火烧荒等等)都严重影响水鸟的生存状况，加之保护区经费短缺，人员不足，使得崇明东滩鸟类的生存环境不断恶化，严重影响了湿地鸟类的生存和栖息地质量。

On the basis of the crystallography, however, systematic investigation on crystalline habit of oxide crystal synthesized by hydrothermal processing, including single crystals and crystalline grains in ultrafine ceramics powder, is also a noticeable subject with theoretical and applicable significance, which has been studied in this article according to plentiful data of experiments obtained in research on crystal defects in synthetic smoky quartz, preparation of amethyst quartz and ultrafine zirconia and alumina powder by hydrothermal processing.

但以结晶学为基础，较系统地研究水热条件下氧化物晶体，包括单晶和陶瓷微粉中的晶粒的结晶习性和结晶动力学仍是一个值得重视的、既有理论意义又有应用价值的课题。本文通过对水热法人工烟水晶中的缺陷、人工紫水晶的生长、水热法超细ZrO〓粉体和Al〓O〓粉体的制备等研究，以较为丰富的实验资料基础上，在这一方面进行了探讨。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。