这种技术也会发生意外，这主要取决于这些化学药剂的使用量。
This approach could also backfire, however, depending on the amount of the agents used.
栽培者必须准备使用一系列的化学药剂。
本文系统地对灯泡贯流式发电机冷却水系统中添加CR防腐化学药剂的研制与使用效果进行了分析。
Development and effectiveness of CR anti-corrosive chemical agent added to the cooling-water system of bulb-generator are analysed systematically.
结果表明，无论哪种使用方法，凡是用了化学药剂和植物激素的处理均有提高坐果率的效果。
The results showed that all the treatments which applied chemicals or hormones could raise the percentage of setting fruit whichever application method.
文中指出纺织品上有害物质的来源包括大气、水质、药剂的使用、土壤的污染和纺织品生产加工过程中的化学处理等。
This paper presents that the sources of poisonous substance on textiles include atmosphere, water quality, the applied chemicals, the polluted soil, chemical processing and so on.
在粮食储藏中广泛使用的化学药剂已受到严格的限制，绿色储粮已成为储粮工作者近年来研究的热点之一。
The green grain storage is becoming the hot issue studied by the grain staff, due to the restricted control on the chemical medication widely used in the grain storage.
种植方式：利用传统的农业种植法，没有使用化学药剂以及除草器，偶尔使用硫磺和有机肥料。
Viticulture: Tradional agriculture, without the adding of chemical products, or weed killers. Ocasional use of sulphur and every 3-4 years organic fertilizer.
种植方式：利用传统的农业种植法，没有使用化学药剂以及除草器，偶尔使用硫磺和有机肥料。
Viticulture: Tradional agriculture, without the adding of chemical products, or weed killers. Ocasional use of sulphur and every 3-4 years organic fertilizer.
应用推荐