有害气体测控报警系统 measurement-control-warning system for harmful gas
船舱内非危险货物产生有害气体的检测方法 detection methods for harmful gas evolved from non-dangerous cargo in holds
有害 harmful; pernicious; detrimental 对健康有害 harmful to one's health; 土壤里的石灰对某些植物有害。 lime in the soil is detrimental to some plants.; 有害废物 harmful waste; 有害粉尘 harmful dust; 有害气体 harmful gas; pernicious gases
Plastics . films for agricultural use . extensible thin films for taping and silage making . determination of sweetability for use 塑料制品.农业用薄膜.缠带和青贮料用可伸长的薄膜.使用的无有害气味性的测定