threshold limit value

基本解釋

OBJECTIVE: To assess the effect of blood lead level on T cell subgroup of children, and the association of T cell subgroup with threshold limit value of blood lead level.
目的：評(píng)估血鉛對(duì)兒童T細(xì)胞亞群的影響，以及血鉛臨界值與T細(xì)胞亞群的關(guān)系。
Objective: To investigate the acute and accumlative toxicities of hydroquinone in mice and rats and to provide the information for establishing the threshold limit value of hydroquinone.
目的：研究氫醌對(duì)小鼠和大鼠的急性毒性和蓄積毒性，爲(wèi)建立衛(wèi)生標(biāo)準(zhǔn)提供資料。
While the threshold value reaches its upper limit the optimization design is finished, thus the final distribution form and its sectional dimensions of the reinforced ribs were obtained.
儅閾值達(dá)到閾值上限時(shí)優(yōu)化設(shè)計(jì)結(jié)束，從而獲得最終的加強(qiáng)筋的分佈形式及其截麪尺寸。