If permitted measures fail, the operator may use a synthetic substance not included in the National List.
如果上述允许的措施无效，操作者可以使用全美允许物质列表以外的合成物质。
Last week the issue was some leather cured with a known teratogenic substance, synthetic Nirret or something just as illegal that's still used in third world tanning.
上礼拜的问题是，部分皮革硫化时使用了致畸物质，某种非法但仍在第三世界用来硝制皮革的合成物质。
"Food additive" means any synthetic compound or natural substance put into food to improve its quality, colour, fragrance or taste, or for the sake of preservation or processing.
食品添加剂：指为改善食品品质和色、香、味，以及为防腐和加工工艺的需要而加入食品中的化学合成或者天然物质。
They have developed a synthetic method for producing the fungal compound and will now attempt to tweak the substance to make it even more effective against tumor cells.
他们已经发现了制造这种真菌复合物的合成方法，现在正努力使得该物质能够更有效地对抗肿瘤细胞。
Poison Any substance (natural or synthetic) that, at a certain dosage, damages living tissues and injures or kills.
毒物任何会损害活组织、致伤或致死的物质(自然物或合成物)。
In a further experiment, the investigators fed untrained mice a substance called AICAR, a synthetic version of AMP that triggers the AMPK switch directly.
在进一步的实验中，研究人员给未经训练的老鼠喂养一种物质叫aicar，一个AMP的合成版可以直接触发ampk转化。
Vinyl is not a natural substance but is a synthetic man-made material.
“乙烯基”并不是一种天然物质，而是一种人工合成的材料。
In tincture form (distilled in alcohol), the natural substance originally obtained from the fawn has been replaced today with synthetic products.
作染料用(酒精中蒸馏)，原先从鹿中获取的自然物质如今已被合成产品替代。
Polymer: Natural or synthetic plastic-like substances having molecule in a high relative molecular mass formed by the chemical linking of many simple molecules, of the same substance.
聚合物：类似塑胶的人造或天然物体。由许多简单而属于同一种物质的分子，通过化学结合而形成，并具有较高的相对分了质量。
In the cement composite, a hardened cement product is coated with a substance block agent composed chiefly of an aqueous dispersion of synthetic resin, a swelling clay mineral and a pigment.
其为在水泥硬化体上被覆有合成树脂水性分散体、膨润性粘土矿物及以颜料为主成分的物质隔绝剂所成的水泥复合体。
Food additive "means any synthetic compound or natural substance put into food to improve its quality, colour, fragrance or taste, or for the sake of preservation or processing."
食品添加剂：指为改善食品品质和色、香、味，以及为防腐和加工工艺的需要而加入食品中的化学合成或者天然物质。
Food additive "means any synthetic compound or natural substance put into food to improve its quality, colour, fragrance or taste, or for the sake of preservation or processing."
食品添加剂：指为改善食品品质和色、香、味，以及为防腐和加工工艺的需要而加入食品中的化学合成或者天然物质。
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