中等: secondary使用条件: service conditions中等使用寿命的: medium-lived使用条件: conditio of usage; conditions of usage; conditions of use; operating conditions; running conditions; serviceconditions标准使用条件: normal service conditions极限使用条件: extreme operating conditions模拟使用条件: service-simulated conditions汽车使用条件: vehicle operation condition实际使用条件: actual service conditions特殊使用条件: particular service requirement正常使用条件: normal operating condition; regular service conditions使用条件,加工条件: working conditions不合使用条件的: unserviceable正常的使用条件: regular service conditions重负荷的使用条件: heavy-duty operating conditions最不利的使用条件: maximum possible environment最恶劣使用条件: extreme operating conditions规定使用条件的财政补贴: conditional grants战斗使用条件下试验: operational suitability trial使用条款: terms of use使用条例: service manual; service regulations备用条件: spare key船用条件: shi condition代用条件: fall-back雇用条件: conditions for employment; employment conditions; terms of employment