The pump depletion is a severe problem which hinders the laser-plasma beat-wave accelerator concept from being practical.
泵浦倒空是限制激光等离子体拍频加速器概念成为现实的严重问题。
Plasma separating technology is used widely in clinic, which is usually carried out by means of a single blood pump. The operator adjusts the rotate speed to change the separating speed.
血浆分离技术在临床上广泛使用，它一般由单血泵完成，操作人员凭经验调节转速来改变血浆的分离速度。
CONCLUSION plasma concentrations of sodium ferulate porosity osmotic pump tablets are constant and effective plasma drug concent-ration is kept for a long time.
结论阿魏酸钠微孔渗透泵片血药浓度平稳，可较长时间保持血药浓度。
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