To date, about 650,000 households have participated in the establishment and management of tree plantations.
截至目前，约有65万农户参加了人工林栽培与管理工作。
The prime requirement of a newly planted tree is rapid establishment of the root .
对新栽幼树的起码要求是迅速建立起根系骨架。
Objective This paper was aimed to explore the assessing model for the hospital infection management through the establishment of the Goal Tree and groups of indices.
目的试图从确立医院感染管理指标体系及目标树入手，建立医院感染管理的评价模式。
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