harmless substance

例句 (10)

• The scientist confirmed that the chemical was a harmless substance.科学家证实该化学品是无害的物质。
• Many household cleaning products contain harmless substances that are safe for everyday use.许多家用清洁产品含有无害的物质，可安全用于日常。
• The report indicated that the new material was a harmless substance with no adverse effects.报告指出，这种新材料是无害的物质，没有不良影响。
• Children were told to avoid touching unknown plants, as some might be harmless substances.孩子们被告知要避免触摸未知的植物，因为有些可能是无害的物质。
• The experiment involved testing a harmless substance to see if it would react with common metals.实验涉及测试一种无害的物质，看它是否会与常见金属反应。
• It's important to distinguish between a harmless substance and one that could cause an allergic reaction.区分无害的物质和可能引起过敏反应的物质很重要。
• The food additive was classified as a harmless substance after extensive testing.该食品添加剂经过广泛测试后被归类为无害的物质。
• Researchers are developing new biodegradable materials, aiming for harmless substance alternatives.研究人员正在开发新的可生物降解材料，目标是开发无害的物质替代品。
• The emergency services assured the public that the spilled liquid was a harmless substance.紧急服务部门向公众保证，泄漏的液体是无害的物质。
• Even a seemingly harmless substance can pose a risk if ingested in large quantities.即使是看似无害的物质，如果大量摄入也可能构成风险。