usual conditions

• 通常条件

usual conditions的用法和样例：

例句

1. Low-activity fly-ash is an industrial waste material which can not be stabilized by lime under normal conditions to achieve the required strength.
   低活性粉煤灰是在通常条件下无法用石灰进行加固稳定形成强度的一类性能较差的粉煤灰材料。