After a break, the groups resumed the experiment for another three weeks, with teens assigned to a different calcium intake level for the second stage.
休息后，对这组成员进行另外三个星期的第二阶段的实验，分配给青少年摄入量的钙。
An experiment prototype of 1.5kw three-level inverter has been manufactured, which is driven by "based on FPGA vector generator". We finally got ideal wave in this experiment system.
本文最后搭建了一个基于多电平矢量发生的逆变实验系统，制作了一台用矢量发生器驱动的1.5 KW的多电平变换器实验样机，在样机上得到了较为理想的波形。
In this study, a three factor and four level orthogonal experiment was designed to study the biologic effect of ultrasonic radiation on Marine Chlorella.
设计了一个超声频率、超声功率和辐射时间三因素四水平的正交实验，研究超声辐射对海水小球藻的生物效应。
应用推荐