In the event of an overload when ILOAD exceeds its maximum permissible value, the increase in voltage across R6 results in sufficient base-emitter voltage to turn on Q2.

当iload超过最大允许值时发生过载情况，R6上的电压增大导致基极-发射极电压足够大到导通Q2。

youdao

In cases where an intended procurement specifies the need for option clauses, the basis for valuation shall be the total value of the maximum permissible procurement, inclusive of optional purchases.

如果意向采购需要规定选择性采购条款，那么此类合同的估价基础应是最大限度允许采购的总值，包括期权购买。

youdao

When choosing a value for R6, ensure that Q2's base-emitter voltage is less than approximately 0.5V at the maximum permissible value of the load current.

选择R6的阻值时要确保在负载电流的最高允许值的条件下，Q2的基极-发射极电压大约低于0.5V。

youdao