常見例句雙語例句Forest insect pest and disease is one of the main factors influencing forest health.森林病蟲害是影響森林健康的主要因素之一。According to observation on harmful characteristics of main forest insect pest, control measures have been put forward.并對主要林木害蟲的危害特點進行了觀察，提出了防治策略。After investigation and study, there are 138 kinds of forest insect pest, which are divided into 8 orders, 43 families.通過調(diào)查研究，初步查明伊克昭盟地區(qū)林木害蟲共有138種，隸屬8目，43科。 返回 forest insect pest