It is necessary to build bases of oleoresin production, select high gum-yielding trees for planting, spread advanced tapping technology and introduce intensive management.
要改变这一状况，必须建立松脂生产基地，选育高产脂力良种，推广先进采脂技术，实行集约化经营。
It is necessary to build bases of oleoresin production, select high gum-yielding trees for planting, spread advanced tapping technology and introduce intensive management.
要改变这一状况，必须建立松脂生产基地，选育高产脂力良种，推广先进采脂技术，实行集约化经营。
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