All these would be welcome changes of substance and symbolism. But even this short list will throw up difficulties.
所有这些实质性和象征性的改变都会受到欢迎，但就是这几项措施执行起来也会困难重重。
A list should be provided of physicochemical and other relevant properties of the drug substance, including biological activity for Biotech.
应提供原料药的物理化学的或其它相关的性质的列表，包括生物技术产品的生物活性。
The article has described substance, characteristic, methods and die types of flasless die forging technology, and it has list the typical die construction figures of flasless die forging.
叙述了闭式模锻工艺的实质、特点、方式及模具型式，列举了典型的闭式模具结构图。
The use in products and packaging of a substance taken into the candidate list shall be phased out within twelve (12) months from the date of publishing the substance in the candidate list.
用一种物质的产品和包装带进的候选名单上应逐步淘汰十二（12）个月时间内从公布之日的候选名单上的物质。
The use in products and packaging of a substance taken into the candidate list shall be phased out within twelve (12) months from the date of publishing the substance in the candidate list.
用一种物质的产品和包装带进的候选名单上应逐步淘汰十二（12）个月时间内从公布之日的候选名单上的物质。
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