The desorption of the flavones is fast when the elution volume is 2 times of bed volume.

当洗脱体积为床体积的2倍时，黄酮的解吸速度很快。

youdao

The desorption of the flavones is fast and complete with 95% ethanol when the elution volume is 2 times of bed volume(BV).

乙醇洗脱速度快，洗脱彻底，洗脱剂用量为2倍柱床体积（BV）。

youdao

When the second derivative of the bubble number in unit bed volume with respect to gas velocity equals zero, the flow regime transition occurs. The model fits fairly well with the experimental data.

导出了当单位床层体积中气泡数目对气速的二阶导数为零时发生流型转变，该模型的计算机结果与实验数据吻合良好。

youdao

Lenovo can use the Chinese market as a test bed before ramping volume and entering other markets, a strategy both aggressive and prudent.

FORBES: Lenovo, Former IBM PC Company, Is Kicking Butt

That night, while we were in bed, and after Kim had fallen asleep, I put the cassette on our stereo cassette player, dragged one of the little speakers over to the bed, and listened to the tape at ultra-low thrash volume.

NPR: The Mix Tape: Art and Artifact