Mills start with a hard, strong construction grade wood like Douglas fir, and then preservative chemicals are injected under pressure to limit the effects of insect and rot damage.
米尔斯开始用硬，强固的构造像花旗松级木材，然后防腐剂化学品的压力之下，以限制昆虫和腐烂造成的损害减少注射。
Wood packaging fumigation is to prevent harmful insect and damage taken by importing countries forest resources of a kind of compulsory measures.
木质包装熏蒸就是为了防止有害病虫危害进口国森林资源所采取的一种强制措施。
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