a range of

一套, 一系列

例句与用法：

The gun has a range of five miles.

这炮的射程为五英里。

It's an electric drill with a range of different attachments.

这是一个带有各种配件的电钻。

A range of values or conditions, especially the range of exposures over which a photographic film yields usable images.

安全曝光的时限价值或情况的范围，尤指曝光范围，在此期限内摄影用的底片能产生可用的影象

A range of hills rose on their left.

连绵的小山耸立在他们的左侧。

A range of endeavor or activity; a province.

范围努力做 ... 的范围或活动范围; 范围

A biotechnology company is developing a range of new pesticide based on naturally occur toxin.

一家生物工艺开发公司正在根据自然滋生毒素的原理研制新型农药系列产品。