Asian carp—including thecommon, black and bighead variety—were brought to the U.S. in the 1970sas live vacuum cleaners meant to remove algae and suspended matter fromponds.
上世纪七十年代，作为清除池塘中藻类和漂浮物质的活真空清洁器，亚洲鲤鱼——包括普通、黑色和大头品种——被引入美国。
Vacuum freeze - drying technique for black currant as raw material was investigated.
以黑加仑为原料，对其真空冷冻干燥特性和工艺进行了试验研究。
Vacuum freeze-drying technique for black currant as raw material was investigated.
以黑加仑为原料，对其真空冷冻干燥特性和工艺进行了试验研究。
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