Article 28 (5) of the REACH Regulation entitles downstream users to contact ECHA and indicate their interest in a missing substance.
REACH法规的第28条第5款规定下游用户有权向ECHA表达他们对没有注册物质的关注。
The method of extracting active substance from leek seed, process and as well as the antibacterial properties of extracts from the early detection were discussed in this article.
本文研究了韭菜籽中生物活性物质的提取方法 、工艺以及初提取物的抑菌性能。
This article analyses the common problems in the registration application and quality control of drug substance, and gives some suggestions for the issues concerned.
分析了申报原料药的管理和质量控制中存在的问题，简述了药品注册中原料药管理和质量控制的几点建议。
Article 49 materials containing radioactivity in excess of standards or materials containing toxic and harmful substance easy to dissolve in the water may not be used in a Marine construction project.
第四十九条海洋工程建设项目，不得使用含超标准放射性物质或者易溶出有毒有害物质的材料。
In this article, nomenclature that is fit for LCA is established according to ISO14040, it contains mainly resources and output substance.
本文依照ISO14040系列标准对LCA方法的定义，收集并整理了适用于LCA方法的物质名录，它涵盖了主要的资源和排放物。
This article points out a misconception in physical chemistry "the value of Gibbs function is equal when Binary System of pure substance is in phase balance".
通过对吉布斯函数定义的再认识和单元两相系平衡条件的推导得出单元复相系相平衡的条件之一是具有强度性质的各相化学式相等。
In this article, we make a general study of chemical component of the black substance, the reason of turning black, its effect on the motor and way to prevent the phenomenon.
本文对发黑物的化学成分、发黑原因、对电机的影响及防止发黑的方法作了一些探讨。
In this article, we make a general study of chemical component of the black substance, the reason of turning black, its effect on the motor and way to prevent the phenomenon.
本文对发黑物的化学成分、发黑原因、对电机的影响及防止发黑的方法作了一些探讨。
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