I avoid laboratory made products are known as synthetics .

我避免实验室制成的产品称为合成。

Industrial synthetics seek extreme operating conditions .

工业化纤寻求极端条件下作业。

Some say they need to pass a drug test ; synthetics do not show up in standard tests .

有人说，他们需要通过药物测试；而合成物不显示在标准测试中。

My first order was from a synthetics gas refinery in china .

我的第一笔订单来自中国一家合成气炼厂。

Many synthetics are not complicated to make ; videos detailing the process on youtube run about ten minutes .

许多合成物做起来一点也不复杂；在youtube上，讲解合成过程的视频长约十分钟。