距离

Then the practical method of distance relay in open-phase running state is proposed after the detailed derivation and analysis on its characteristics.

对各种距离继电器在非全相状态下的动作特性进行了详细的推导及分析，最后得出了实用的非全相距离保护的实现方法。

The occurrence of wrinkling is attributed to the large die gap, which is the difference between the side length of the die cavity opening and the side length of the punch head.

出现的皱折是由于模具间隙大引起的；该间隙在模具腔口的侧面距离和冲头侧面距离之间有差别。

So prohibiting human disturbance and stopping shallow water areas and grassland habitat destruction as well as recovering the original habitat are important measures to mitigate the conflicts between Ruddy Shelducks and local people.

取食的时候，雌性赤麻鸭的警戒水平随捉到其雄性配偶的距离的增加而显著增长，而雄性赤麻鸭的警戒水平并未随着到其雌性配偶的距离的改变而发生变化。

First, the character clustering algorithm regards the character as our features and then it can cluster these sentences of our target words to the correct group without any other resources. The average precision is 66.1%. Second, in the concept clustering algorithm of the aggregate computing, we use HowNet as the knowledge base of our feature words and obtain the concepts of these words. We cluster the sentences which have the same or similar concepts of the feature words into the same group. And then we can complement some lacks of the character clustering algorithm. The average precision is 72.3%. Third, regarding the concept clustering algorithm of the sememe distance, we use the sememe distance to compute its concept similarity. It improved similarity measure of the concept clustering algorithm of the aggregate computing. It achieves 81% average precision and gets better cluster quality.

词形分群演算法不受语料资源限制，能将词形相似且词义相近的词汇所属的句子分到同一群，经过人工验证，得到了66.1%的平均正确率；基於集合计算的概念分群演算法使用了知网做为撷取特徵词汇的知识库，透过知网取得词汇的概念，将具相同或相似概念的特徵词汇所属的句子分成同一群，补足词形分群演算法的不足，得到72.3%的平均正确率；基於义原距离的概念分群演算法则利用义原间的距离计算特徵概念的相似度，进一步改善了基於集合计算的概念分群演算法在相似度衡量的问题，得到81%的平均正确率，达到更好的分群效果。

When other than floor-mounted, the luminaire is to be 57 舞台灯标准 supported with the lowest feature of the lamp compartment 0.9 m (3 feet) above the tissue paper-covered, knot-free softwood surface.

32.4 灯具为地安灯时，其底部必须垫一张绵纸，knot-free 软木材的表面。除地面安装灯外，其它灯具元件距离绵纸的最小距离为0.9mm(3 feet)。

Finally, the thesis analyzes statistical laws of the maximum saltating height and saltating length of saltating sand grains and they follow Gamma function distribution. This is consistent with the results of water-sand motion. It shows that statistical laws of saltating height and saltating length of saltating sand grains are independent of the medium of flow. It is possible the nature of saltating sand grains.

最后，分析了沙粒跃移距离、跃移高度的相对量的统计规律，认为它们均服从Gamma函数分布，与在含沙水流中的研究结果一致，说明沙粒跃移运动的跃移高度与跃移距离的统计规律与流场、所处的介质无关，这可能是沙粒跃移运动的本质所在。

The results of calculations showed that the maximum increments in saltation height and horizontal distance due to the Magnus force were 10.2 and 24.9%, respectively, and that both increments increased with increasing lift-off angle. The maximum increments in saltation height and horizontal distance of sand grains caused by the Saffman force were only 4.6 and 3.7%, respectively. The vertical concentration distribution of Aeolian sand flow follows exponential function distribution whether or not force analysis of saltating sand grains includes Magnus and Saffman force. The effect of Magnus and Saffman force on the vertical concentration distribution of Aeolian sand current makes the rate decrease near sand bed and it is consistent with the effects of Magnus and Saffman force on the saltation height and distance of sand grains.

Magnus力对跃移高度和水平距离产生的最大增量分别可达到10.2%和24.9％，这两个增量均随起跃角度的增加而增大；Saffman力对跃移高度和水平跃移距离产生的最大增量分别为4.6%和3.7%；是否考虑Magnus与Saffman力，风沙流垂向质量百分浓度均服从指数函数分布，Magnus与Saffman力使得风沙流垂向质量百分浓度较不考虑它们的作用呈现出底层的比例较小，上层较大，Magnus与Saffman力对跃移高度的影响基本与其对风沙流垂向质量分布的影响一致，不过Magus力对风沙流垂向质量百分浓度分布影响较大，0-2cm范围内尤为强烈(7.16-10.81)，其他高度层(2-20 cm)的影响相对较小(0-2.95)。

The manipulation of Hv and Vv in Small Angle Laser Scattering experiments gives the parameters of correlation distance to characterize crystalline dimension and phase dimension as well as average chord lengths and particle diameters. All the results of Vv by SALS were compared with that of PCM and SEM.

对共混体系进行了小角激光光散射的HV和VV散射研究，计算了表征结晶尺度的相关距离、表征相尺寸的相关距离、平均弦长和相颗粒的平均直径，并与PCM和SEM的计算结果进行了比较。

Experiment 7 investigated the saccades feature and number distance effectusing the numerical comparison task under endogenous attention.Experiment 8 investigatedthe saccades feature and number distance effect using the numerical comparison task underexogenous attention.

实验7在内源性注意条件下，采用数字大小比较实验任务，考察数学学优生和学差生数字加工中的眼动特征和距离效应；实验8在外源性注意条件下，采用数字大小比较实验任务，考察数学学优生和学差生数字加工中的眼动特征和距离效应。

The results were as follows: with the shortened distance from the forest edge, photosynthetic rate of rice quadrats were gradually reduced; while the temperature, relative humidity and CO2 concentration in rice population did not change significantly; rice yield declined in a row, mainly because of a significant decreased panicles per unit area.

结果表明，随着与林缘距离减小，样方水稻的光合速率逐渐降低，而水稻群体内的温度、相对湿度和CO2浓度的变化不明显；水稻产量连续下降，其主要原因是单位面积穗数的大幅度降低；而不同林缘距离样方水稻的千粒重和结实率变化甚微。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐