At the stage of tuberization to tuber-expanding, the growth of leaves, stalks and tubers reached the maximum.

块茎形成到块茎膨大始期，阶段吸硫量和吸硫速率均到最大值，成熟收获时降到最低值。

When resonance happens,the induced voltage will reach to its maximum value.Tracking the maximum value can realize the frequency autotracking.

谐振时，感应电压到最大值，搜寻感应电压最大值就能实现频率自动跟踪。

The minx, miny and minz values are the minimum extents on each axis, the maxx, maxy and maxz values are the maximum extents on each axis.

minx，miny和minz值是每个坐标轴上的最小值；maxx，maxy和maxz值是每个坐标轴上的最大值。