"Pouch" is the love keepsake that girls make for whom they love. When embroidering pouches, they always immerse in the miss of their sweethearts.
“荷包”是女子为心上人制作的感情信物，绣荷包时她们始终沉浸在对情人的思念之中。
When stepping motor works in some pulse frequency, it may have the problem of oscillation and miss of synchronization, so it should be avoided at full steam.
在一定控制脉冲频率下，步进电动机可能出现振荡与失步现象，严重影响步进电动机的运行，要严格防止这种情况发生。
When stepping motor works in some pulse frequency, it may have the problem of oscillation and miss of synchronization, so it should be avoided at full steam.
在一定控制脉冲频率下，步进电动机可能出现振荡与失步现象，严重影响步进电动机的运行，要严格防止这种情况发生。
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