查询词典 ballistic curve

Involute curve and spiral curve are driven by filar involute function equation and spiral curve equation respectively and main dimensions of the model are controlled by the relation.

利用渐开线方程和螺旋线方程驱动生成渐开线和螺旋线，同时又对模型主要尺寸通过关系式进行控制。

In the long time creep tests, by regressive analyses, the creep curve of glauberite at different stress level is obtained: at 50% of its compressive strength, the creep curve is ε 0.009t0.3265, at 80% of compressive strength, the creep curve is ε=0.0098ln-0.0014. It is clear from the creep curves of the rock mass, that the creep rate at high stress level is higher than that at the lower stress level.

通过长时间的蠕变实验，回归出钙芒硝盐岩蠕变在不同应力水平下随时间变化的曲线，其抗压强度50%时的曲线方程为ε=0.0098ln-0.0014，抗压强度80%时的蠕变曲线方程为ε=0.012ln-0.0056，应力水平高时其蠕变速率高于低应力水平的蠕变速率。

Results showed diural variations of leaf Pn displayed bipeaked curve model, indicating the depression of photosynthesis at noon. Leaf Pn rate in June was higher than in September; Compared to leaf Pn, Cs had a similar changing curve, Cs in June was higher than in September. While diural variations of intercellular CO2 concentration were opposite to that of leaf Pn and Cs, decreased before 1200,increased after 1200, decreased again at 1600,after 1600 increased again; diural variations of climatic factors displayed single peaked curve model, peakedvalue occurred at 1400,and their influences on physiological factors were indirected and integrated.

结果表明，光合速率的日变化具有双峰型，存在光合午休现象，6月的光合速率高于9月；沙棘的气孔导度较低，其日变化与光合速率有相似的变化趋势，6月的气孔导度大于9月；细胞间CO2浓度的日变化与光合速率和气孔导度的日变化相反，1200之前下降，之后上升，1600下降，然后上升；气象因子的日变化具有单峰型，峰值1400出现，对生理因子的影响是间接且综合的。

Also referred to as a normal distribution or normal curve, a bell-shaped curve is a perfect mesokurtic curve where the mean, median, and mode are equal.

指一种完美的常态曲线，平均值、中间值和模型都是平均的。

A new method and the principle is presented for plotting the critical metacentric height curve which meets IMOs intact stability criteria and weather criteria,and the critical metacentric height curve which meets 1976 SOLAS intact stability criteria. And the critical metacentric height curve is used in the Stability check of bulk grain carriers in accordance with the stability rules for bulk grain carriers.

本文还具体给出了满足IMO完整稳性和天气衡准的临界初稳性高度的求作方法，以及满足1976 SOLAS公约散装谷物船舶的稳性衡准要求的临界初稳性高度的原理和求作方法，并将由此得到的临界初稳性高度曲线综合运用到散装谷物船舶的稳性校核。

However , the demand curve derived in this way may slope either downward or upward the supply curve derived in this way even doesn 't exist in the monopolistic situation theoretically , if a supply curve doesn 't exist to a monopolistic producer , there are no such supply curves existing to oligopolistic and monopolistically competitive producers either .

然而这样推得的需求曲线既可能向下倾斜，也可能向上倾斜；这样推得的供给曲线，在垄断情况下就&不复存在了&；而且理论上讲，如果垄断厂商没有供给曲线，那么寡头厂商，垄断竞争厂商也会没有供给曲线。

According to AD curve with AS curve nodical decision is real always yield and the general and balanced principle of price total level, be described like can correct ground and analyse each years of AD, the actual mobile contrail of AS curve, will conduce to the settlement of above difficult problem undoubtedly.

根据AD曲线与AS曲线的交点决定真实总产出和价格总水平的一般均衡原理，如能正确地描述和分析各年AD—AS曲线的实际移动轨迹，无疑将有助于以上难题的解决。

And different kinds of curves also reflected different composes of sedimentary fragments and conditions of sediment: the curve in the shape of normality acute kurtosis reflects the sedimentary condition of sand which were blown by wind; the curve in the shape of skewness broad kurtosis means fragments formed by river; and the curve in the shape of saddlelike kurtosis shows a relationship with the condition of deep water.

不同类型的曲线反映了不同的碎屑物源组成和不同的沉积环境：在该剖面正态尖峰代表风沙物源，偏态宽峰代表河水物源，正态尖峰和偏态宽峰的叠加代表风沙物源与河水物源的混合，鞍状宽峰可能与深水环境有关。

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。

Steps of the invention are that an agitator in a main reaction region is started while water enters to implement the nitrification process under the hypoxic condition. When a maximum value appears on a pH value curve and an inflection point appears on an ORP curve, the stirring is stopped. When the last stirring stage is stopped, oxygen is added in the mixture for the degradation of organic compounds and the nitrification of nitrogen compounds. When a minimum value appears on the pH value curve, the aeration is stopped. The steps are repeated till the water inletting stage is finished. And an aerobic aeration stage is taken as an ending stage of a reaction period.

本发明步骤：进水同时开启主反应区搅拌器，进行缺氧条件下的反硝化过程，当pH值曲线上出现极大值且ORP曲线上出现拐点停止搅拌；上一搅拌阶段停止后，向混合液中供氧，进行有机物的降解和含氮化合物的硝化作用，当pH值曲线上出现极小值停止曝气；重复以上步骤，直到进水阶段结束，并以好氧曝气阶段为反应期的结尾阶段。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。