The previously-undetectable drug was manufactured by the Bay Area Laboratory Cooperative or BALCO.

这种以前服用后不能被检测出的禁药由湾区实验室合作社（简称BALCO）生产。

youdao

The probe into the California-based laboratory BALCO uncovered a previously undetectable steroid that had been given to several high-profile athletes.

对加州BALCO实验室的调查揭露了一个从未发现的类固醇药物，这些药物曾被提供给许多著名的运动员。

youdao

Victor Conte, owner of the Bay Area Laboratory Co-operative, or BALCO, also admitted to money-laundering.

NPR: BALCO Plea Deal May Keep Stars Off Stand

But as the book reports, Bonds chose Balco because that's where Olympic athletes went.

FORBES: Roger Maris Belongs in the Hall

Baseball's all-time home-run king is accused of getting steroids from a San Francisco company called BALCO.

NPR: Report: A-Rod Tested Positive For Steroids