查询词典 celestial guidance

Star pattern identification algorithm based on convex polygon with star magnitudes-independent is presented for strap-down celestial guidance.

依其坐标排序，采用由平面上的点生成凸多边形的算法，就能得到唯一的、以恒星为顶点的凸多边形。

The star has always been a foundation stone of logo design, rife with symbology that varies from jingoistic federalism to quality and celestial guidance.

今天，它的重要性未被削弱。

Begin from 2008, grand celestial bodies designs the guidance of association in reconnaissance of construction ministry China, inside associated industry homebred software firm, prepare to construct " homebred software user is allied ".

从2008年开始，浩辰在建设部中国勘察设计协会的指导下，联合行业内国产软件厂商，筹建&国产软件用户联盟&。

As reported, the celestial guidance of single-star scheme can correct initial localization, orientation errors and constant drifts of gyro in mobile launching ballistic missile, while we consider that the scheme can only compensate for partial constant gyro drift .

有参考文献认为，采用单星制导即可以估计和补偿初始定位误差、初始方位误差、陀螺常值漂移等误差源导致的弹载惯导系统定位误差，但我们认为，单星制导不能估计出全部的常值陀螺漂移。

By the late 1970s, the PRC had made breakthrough in a number of SLBM-associated technologies, including the lightweight nuclear warhead (600~700kg) developed by 14 Nuclear Institute; the guidance system developed by 717 Shipbuilding Institute; the onboard computer was developed by 771 Space Institute; the solid-propellant rocket motor by 4th Space Academy, the SLBM launch system developed by 701 Shipbuilding Institute, the inertial/celestial/satellite guidance system developed by 707 Shipbuilding Institute.

在1970年，中国在许多SLBM相关技术上获得突破性进展，包括轻型核弹头（600~700公斤）由核工业第十四研究所发展，制导系统由中船重工717研究所发展；舰载计算机由航天771所发展；固体火箭发动机由第四空间研究院发展，发射系统由中船重工701研究所发展，惯性/天文/星形制导系统由中船重工707研究所发展。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。