... 铅污染 Lead contamination 铅中毒 lead poisoning 产品从设计到投产的时间；从订货到交货的时间 lead time ...
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food lead contamination 食品铅污染
environmental lead contamination 环境铅污染
The results were as follows:1Under the stress of cadmium and lead contamination, leaves appeared chlorosis system, Cd~2+ treatment was the most obvious, the system of Acer mandshurica Max. and Lonicera maackii Max. were the most outstanding among the four tree species seedlings.
研究结果如下:1 镉铅污染胁迫下,叶片出现失绿症状,以含镉处理最为明显,苗木中以白牛槭和金银忍冬最为突出。
参考来源 - 四种城市绿化树种对土壤镉铅污染的抗性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
It's not just dropping food on the floor that can lead to bacterial contamination.
不仅仅是食物掉在地上会导致细菌污染。
Coal ash is known to contain dangerous elements including arsenic, lead, and selenium, yet the TVA refused at first to issue any health warnings about contamination from the spill.
煤灰渣含有多种危险物质，包括砷、铅、硒等，然而田纳西流域管理局起先矢口否认煤灰渣中含有对健康有害的物质。
As it travels through various points of the supply chain, there are possibilities of this food being exposed to temperatures or other factors that could lead to its contamination.
由于这些蔬菜水果会经过供应链的各个节点，暴露在常温下或者其它因素会导致污染。
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