自退

自退汇通知投交汇款人之日起满十个月未被领回的汇款，上缴国库。

Remittances which are unclaimed when a period of ten months expires , counting from the date of delivering the return-remittance notice to the remitters , shall be turned over to the state treasury .

基于N-1准则的备自投投退控制策略

Analysis on Control Strategy of Busbar Automatic Transfer Switch Based on N – 1 Criterion

在实际的备自投投退中，应充分考虑备用电源侧元件的热稳定极限影响，否则会给电网带来更大损失。

In the control of practical BATS the influence of the component thermal stability limits at standby power supply side on BATS should be fully considered , or it will bring much damage to power network .

但是，随着电网规模不断扩大，智能电网在我国的发展，对于备自投的投退提出了更高的要求。

However , with the development of power system and smart grid in our country , jt need higher requests for bats .

而且离子密度低（一般密度为10~5／cm~3），因此不会出现自吸收、碰撞退激发以及离子间场效应等现象。

In this technique , the particle density in the beam is very low ( typically 105 thickness ), So perturbations from collisions and inter-ionic fields are absent .