below detection

基本解释

The drugs can be used to reduce a woman's viral load effectively below detection.
這些葯物可將婦女的病毒載量有傚地降低到可檢測範圍以下。
Treatment is aimed at HIV-1 RNA number dropped to below detection threshold, even before receiving the full treatment of patients.
治療目的是將HIV-1 RNA數量降至檢測閾以下，即使是以前接受過充分治療的病人。
Rather the detection limit is shown to be sufficiently low by the analysis of samples with known concentrations of analyte above and below the required detection level.
而是，通過分析含有高於和低於必需的檢測水平的、已知待分析物濃度的樣榀，以顯示檢測限度足夠低。
www.can-yin.cn

At the same time, continuous blood sampling of these volunteers revealed that active BPA was below the limits of detection (1.3 nanomoles) using the most sensitive monitoring technology available anywhere on the planet.
FORBES: Breast Cancer Fund's Scary Thanksgiving Study Is A Turkey
It might not, because: One, if every top pro is using just below the threshold of detection, then the playing field is level and the riders with the most talent and dedication will still win.
FORBES: How Low Will The Dow Go?
Plus, if BPA was below the level of detection using the most advanced technology for determining the presence of such chemicals, all those animal studies claiming adverse effects based on much, much higher exposures were simply irrelevant to human health.
FORBES: Top Government Scientists Catch Media's Favorite Anti BPA Researcher in Absurd Claims, Ties To Trial Lawyers