木质包装材料是用于支撑、保护或装卸货物的木材或木制品。
Wood packing material is wood or wood product used in supporting, protecting, or carrying a consignment.
因此，所有木质包装材料的真实原产地难以确定，从而使其植物检疫状况也不能确定。
Therefore, the true origin of any piece of wood packing material is difficult to determine and thus its phytosanitary status cannot be ascertained.
木质包装材料经常是有害生物传入扩散的高风险途径，因为其通常由未加工、质量差的木材制成。
Wood packing material is frequently a high risk pathway for the introduction and spread of pests because it is usually made of unprocessed, low quality wood.
而且，根据美国和加拿大两国的双边协议，完全采用加拿大产木材生产的木质包装材料免于熏蒸及标记。
In addition, by bilateral agreement between the U. s. and Canada, WPM made entirely from Canadian origin wood is exempt from the treatment and marking requirements.
木质包装材料中以木包装、木托及卡板中截获的有害生物为多，截获有害生物主要以线虫和林木害虫为主。
Exotic pests were found to be mainly carried by wood package materials, wood trays and boards, and nematodes and forest borers were the mainly pest species intercepted from imported SWPM.
货物，包括包装箱在内，未使用任何天然木质垫木、木支撑物、木托盘、板条箱或其它天然木质包装材料。
"This shipment, including its container, does not contain any non-manufactured wooden material, dunnage, bracing material, pallets, crating or other non-manufactured wooden packing material".
货物，包括包装箱在内，未使用任何天然木质垫木、木支撑物、木托盘、板条箱或其它天然木质包装材料。
"This shipment, including its container, does not contain any non-manufactured wooden material, dunnage, bracing material, pallets, crating or other non-manufactured wooden packing material".
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