Trace amounts of radiation from Japan have been detected across the United States and Europe.

从日本到达美国及欧洲的辐射量及其微弱。

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Previously the agency said the trace amounts of BPA that leach out of food containers are not dangerous.

之前这个机构说食物容器中渗出的微量bpa并没有危害。

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Animal products only contain trace amounts of vitamins, minerals and nutrients because animals eat plants (sea or land).

动物产品只含有微量的维生素，矿物质和营养素，因为动物吃植物(海洋或陆地)。

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Over the past few decades,however, scientists have determined that even trace amounts of lead in children's bodies leads to long-term neurological and behavioral problems.

VOA: standard.2009.12.19

I don't know how many know that there are trace, trace amounts, of cyanide in almonds.

我不知道有多少人知道在杏仁中有非常，非常微量的氰化物。

麻省理工公开课 - 化学原理课程节选

Fifty thousand years ago, a meteor carrying trace amounts of silicone carbide crashed into present-day Arizona.

FORBES: Investing Gurus Put Money On Gold, Jewels From Outer Space - Forbes

Connor, who holds four world records, tested positive for trace amounts of testosterone and nandrolone last month.

BBC: SPORT | Other Sport | Paralympics | Connor out of Games

The cause of death was arsenic poisoning and an autopsy found trace amounts of strychnine and other chemicals in his body.

NPR: Police Memorial Wall Comes With Some Tough Calls