1) three-index symbol
三索引符号
2) index of symbols
符号索引
3) index table of symbol
符号索引表
4) iconic indexing
图形符号索引
5) symbolic spatial indexes
符号空间索引
1.
At last, we explained this way through introducing how to realize a complex spatial query, which includes topological relations and directional relations at the same time, using the model of binary topological relations and the model of symbolic spatial indexes.
最后结合空间查询中的实例,通过介绍如何同时运用二值拓扑关系模型和符号空间索引模型来实现同时包含拓扑关系和方向关系的复杂空间查询来说明这种方法。
6) power train index
传动系符号[索引]
补充资料：苯并三唑-1-三(三甲氨基)-三氟磷酸酯
CAS: 56602-33-6
分子式: C12H22F6N6OP2
分子质量: 442.28
熔点: 136-140℃
中文名称: 苯并三唑-1-三(三甲氨基)-三氟磷酸酯
英文名称: (1-hydroxy-1h-benzotriazolato-o)tris(n-methylmethanaminato)-phosphorus(1++
benzotriazol-1-yloxytris(dimethylamino)-phosphonium hexafluorophosphate
benzotriazol-1-yl-oxytris(dimethylamino)phosphonium hexa-fluorophosphate(bop)
benzotriazol-1-yl-oxy-tris(dimethylamino)phosphonium hexafluorophosphate
分子式: C12H22F6N6OP2
分子质量: 442.28
熔点: 136-140℃
中文名称: 苯并三唑-1-三(三甲氨基)-三氟磷酸酯
英文名称: (1-hydroxy-1h-benzotriazolato-o)tris(n-methylmethanaminato)-phosphorus(1++
benzotriazol-1-yloxytris(dimethylamino)-phosphonium hexafluorophosphate
benzotriazol-1-yl-oxytris(dimethylamino)phosphonium hexa-fluorophosphate(bop)
benzotriazol-1-yl-oxy-tris(dimethylamino)phosphonium hexafluorophosphate
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