1) elimination tree
消去树
1.
By use of symbolic factorization based on elimination tree theory and improved LU numerical decomposition algorithm based on sparse vector method,the efficiency of power flow calculation by Newton-Raphson method is improved.
采用了基于消去树理论的符号因子分解技术以及改进的LU数值分解算法来提高牛顿法潮流计算的效率。
2.
This paper presents a new implementation method for LDL factorization based on the theory of elimination tree for factorization factor.
基于分解因子消去树理论,提出一种新的LDL分解计算方法,它利用消去树结构,将LDL分解过程分为非零元素结构预测和数值计算两部分,从而有效避免多余的内存开销和数值运算。
3) deletion
[英][di'li:ʃən] [美][dɪ'liʃən]
消去
1.
Sufficient and necessary conditions for coverings and deletions of parity ( g,f )_factors of a general graph are given, and their duality is investigated.
给出一般图的奇偶 (g ,f)_因子覆盖和消去的充要条件 ,并研究其对偶
4) raze
[英][reɪz] [美][rez]
刮去消去
5) stem wood
去皮树干
1.
Elevated CO2 didn t affect stem wood significantly under low plant density but significantly under high density,while,the elevation of plant density significantly reduced.
研究了高(HD)、低(LD)两个种植密度下红桦幼苗的树皮和去皮树干特征对CO2升高的响应。
6) "The Tree of Last Year"
《去年的树》
1.
The story of"The Tree of Last Year"is very short,but its meaning is profound and lasting.
《去年的树》故事简短,却意味深远,可以进行开放式与多层次解读,可以从友谊的童话、永远的失去、生命的深层体验以及童话的悲剧性等层面解读,也可以对叙事形式进行分析。
补充资料:人工消云消雾武器
人工消云、消雾是指采用加热、加冷开播撒催化剂等方法,消除作战空域中的浓雾,以提高和改善空气中的能见度,保证已方目视观察、飞机起飞、着陆和舰艇航行等作战行动的安全。在第二次世界大战中,英军曾使用一种名为“斐多”的加热消雾装置,成功地保障了2500架次飞机在大雾中安全着陆。1968年,美军为保障空军飞机安全着陆,曾使用过人工消雾武器。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条