1.
Allergic reactions can occur when the immune system over reacts to innocuous substances.
过敏反应可能发生当免疫系统起反应对无害物质。
2.
High Efficiency and Pollution-free Resources Utilization of Agricultural and Forest Biomass
农林生物质的高效、无公害、资源化利用
3.
Even innocuous substances can sometimes register a positive result in a drug test.
即使无害的物质在药物测试中有时也会呈阳性。
4.
warfare using chemical agents to kill or injure or incapacitate the enemy.
用化学物质杀死、伤害或使敌人无力的战争。
5.
exposure to or contact with harmful substance
暴露于有害物质中或接触有害物质
6.
"Inadvertent pollution" refers to the unintended introduction of a material that causes plant damage.
“不被注意的污染”涉及无意中引进的物质造成对植物的危害。
7.
Emissions of harmful substances into the airnosphere continue unabated and look like they will get worse before they get better.
毫不节制地向大气层排放有害物质有增无减，日趋恶化。
8.
the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors.
一种玷污或污染的行为；包括（或有意或无意）有害物质。
9.
Preliminary Discussion on Harmfree Pests Management in Garden Plants;
浅议园林植物病虫害的无公害化治理
10.
Survey of the City Garden Plant Insect and the Non-contanmination Control
城市园林植物害虫调查及无公害防除
11.
pollution of the air.
空气受到有害物质的侵害。
12.
hazardous substance values
有害物质数值，危险物质数值
13.
Microbes can take toxic substances in contaminated soil and convert them into harmless byproducts.
微生物能从被污染的土壤中吸收有毒的物质，把它们转化成无害的副产品。
14.
Releasing harmful chemicals into the air and water endangers living things.
释放有害的化学物质到空气和水中会危害生物。
15.
Most important is that it is produced by the body; moderate doses of it are not harmful to normal body cells.
最主要之点是，因为它是机体本身产生的物质，所以适当的剂量对于机体的正常细胞无害。
16.
Vaccines contain dead or harmless germs. They cause the body to develop substances called antibodies that act to prevent disease.
疫苗含有死的或无害的病菌。它们让身体产生叫做抗体的物质，抗体预防疾
17.
Depending on the nature of the pollutant, this transfer can be innocuous or stimulatory to the forest.
根据污染物的性质，这种转移对森林可能是无害的，还可能有促进作用。
18.
improve planting and breeding techniques so as to bring about high-quality, non-hazardous agricultural products and generate resources from wastes from agricultural production and prevent and control agricultural environmental pollution.
改进种植和养殖技术，实现农产品的优质、无害和农业生产废物的资源化，防止农业环境污染。