您要查找的是不是：
- diffusion of noxious substance 有害物扩散
- indirect action of noxious substance 有害物质间接作用
- Toxic effect of noxious substance eaten as food 食入有害食物毒性作用
- Clouds cause the diffusion of light from the sun. 云使阳光漫射。
- Environmental monitoring is another potentially large area for using immunoassays including detection of noxious substances such as pesticides, insecticides, and bacteria in drinking water. 环境监控也是另一个潜在的需要免疫检测的大领域，包括检测有害物质如杀虫剂和饮水中的细菌。
- International Pollution Prevention Certificate for the Carriage of Noxious Substance in Bulk 国际防止散装运输有毒物质污染证书
- To make the diffusion of the correspondence. 负责往来文件的分发工作。
- The diffusion of MRCs was influenced by transportation. 总体来看，宣教地的空间扩散明显带有点轴状的迁移扩散和以交通重要性来划分的等级扩散特征。
- Certain fishes have a swimbladder which aids in diffusion of gases. 有些鱼有鳔，它有助于散布气体。
- The invention of printing helped the diffusion of learning. 印刷术的发明有助于知识的传播。
- carriage of noxious liquid substance 有毒液体物质运输
- Musk is a kind of strong-smelling substance. 麝香是一种有强烈气味的物质。
- Certain fishes have a swim bladder which aids in diffusion of gases. 有些鱼有鳔,它有助于散布气体。
- They were as a few fragrant flowers amidst a dense accumulation of noxious weeds. 她们就象大丛毒草中的几朵香花。
- The invention of the printing press announced the diffusion of knowledge. 印刷术的发明预示着知识的传播。
- This diffusion of knowledge accelerated dramatically in recent decades. 近几十年来，知识的传播速度大大加快。
- Poisnous and noxious substances in the imported iron ores must not bring or possibly bring harm to man and environment. 进口铁矿石中不得含有给人民健康和环境带来危害或是具有潜在危害的有毒有害物质。
- Because the world keeps learning, the diffusion of knowledge happens faster. （正因世界不断地学习，知识散布得更快。）
- The invention of the printing press announced the diffusion of knowledge . 印刷术的发明预示着知识的传播。
- In the case of a physical change no new substance is formed. 就物理变化来说，没有新的物质产生。
