precursor chemicals

基本解释

This work must also include redoubling efforts to prevent the supply of the precursor chemicals that are the foundation of so many illicit drugs.
在这项工作中，我们还必须加倍努力，防止供应前体化学品，因为此类化学品是很多非法药物的基础。
An entity that produces, distributes, purchases, transports, imports or exports the precursor chemicals shall establish an internal management system for precursor chemicals.
生产、经营、购买、运输和进口、出口易制毒化学品的单位，应当建立单位内部易制毒化学品管理制度。
An entity that engages in the production, operation, purchase and transportation and import and export of precursor chemicals shall establish an internal management system of precursor chemicals.
生产、经营、购买、运输和进口、出口易制毒化学品的单位，应当建立单位内部易制毒化学品管理制度。
rondeng.blog.163.com

The treaty lists the agents and precursor chemicals that will be subject to control.
CENTERFORSECURITYPOLICY: Chemical Weapons: Say No to This Troubled Treaty
The new plan goes further, aiming also at the supply of the precursor chemicals used to refine the drug and at money laundering.
ECONOMIST: Bolivia goes to war against coca
However, the inspectors could not account for more than 4, 000 tonnes of precursor chemicals used in the manufacture of chemical weapons, as well as more than 30, 000 chemical shells and other munitions.
ECONOMIST: What the inspectors didn’t find