该技术没有有毒物质挥发、排放，对人体和环境无害，安全可靠。

Novolation of poisonous material, no harm to the health of human body and environment.

youdao

该技术没有有毒物质挥发、排放，对人体和环境无害，安全可靠。

Novolation of poisonous material, no harm to the health of human body and environment.

youdao