The $ENV hash array contains the environmental variables, allowing us to interrogate the Accept HTTP header.
$ENV哈希array包含了环境变量，它允许程序员重定义Accept HTTP头信息。
You can get a listing of other environmental variables that have been set by typing env at the prompt.
在命令提示符处键入 env 可以获得已经设置的其它环境变量。
The BIO-ENV analysis revealed that water depth, bottom temperature and sediment type are all the important environmental factors influencing upon the species and abundance of BBL fauna.
BlOENV分析表明，水深、底层水温及底质类型是影响海洋底边界层动物种类组成与丰皮的重妥因数。
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