| 例句 |
The use of these chemicals must be carefully policed.这些化学药品使用时必须受到严格控制。Beware how you handle the toxic chemical.小心处理有毒的化学药品。The whole food chain is affected by the overuse of chemicals in agriculture.农业生产中化学药品的过度使用使整个食物链都受到了影响。Crops are sprayed with highly toxic chemicals to prevent insect damage.农作物喷上了毒性很大的化学药品以预防虫害。The wood is impregnated with a chemical which prevents decay.这种木材是用防腐化学药品浸渍过的。The chemical causes a disruption of cell function.这种化学药品会造成细胞功能的紊乱。Eroded tissue may be destroyed by chemical application.使用化学药品以后，溃烂组织可能被破坏。This new photographic paper has its chemistry built in.这种新型感光纸内含处理时所需的各种化学药品。Optimize chemical dosing and efficient operation of industrial process water and equipment.优化化学药品给药量，有效控制工业用水和设备。The chemical is lethal to rats but safe for cattle.这化学药品杀鼠，但对牲畜无害。In the short term, chemical sprays are clearly an effective way to control pests.从短期来看，喷洒化学药品显然能有效控制虫害。 |