轮班工作制带来的困难之一是睡眠不足。
One of the difficulties attendant on shift work is lack of sleep.
动物园运用了水耕法，室内照明和轮班工作制，相对与传统种植法成功降低了95%的水和肥料消耗。
Using hydroponics, indoor lighting and rotating planters, the zoo has successfully reduced water and nutrient consumption by 95 percent relative to conventional systems.
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