The use of the tree logo is a universally recognizable symbol which represents many things, some of which are life, wisdom, strength, protection and abundance.

树形标志是一个普遍认可的象征，它代表了很多东西，其中包括生命、智慧、力量、保护和丰富等。

youdao

This paper studied the protection mechanism for virtual ring in mesh topology, and analyzed a construction algorithm for a virtual ring based on spanning tree.

文章对网状拓扑中的虚环保护机制进行了研究，并对一种基于生成树的虚环构成算法进行了分析。

youdao

Xuanzheng Hall and Zichen Hall sites are exhibited in the form of "Tree House", which is a new attempt and is in the forefront of the international site protection.

宣正殿和紫宸殿遗址采用了“树屋”的展示方式，这种全新的尝试，走在了国际遗址保护的前列。

youdao

The findings suggest that things like land rights, markets or government policies can influence tree planting and protection.

VOA: special.2009.09.01

Protection could extend to new tree plantings or the creation of new habitats where birds could form communities.

FORBES: Scientist Pitches Proposal to Curb Bird Deaths: A Tax On Cats