The industrial sewing machine with both top and bottom feeding system, which has not been made in our country yet, symbolizes the advanced world levels in the garment industry.

具有上下差动送料功能的工业平缝机国内至今还未试制成功。本文对其中具有代表性的日本DLU-490型机进行了分析与研究。

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Biological hypotheses include ecological changes brought about by the evolution of cooperation between insects and flowering plants or of bottom-feeding predators in the oceans.

生物学上的假设包括生态变化，这些变化是由昆虫和开花植物之间的共同进化，或海洋中以海底生物为食的捕食者的进化所带来的。

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When dolphins are feeding, that target is often a bottom-dwelling fish, though they also eat shrimp and squid.

宽吻海豚摄取食物时，其目标往往是在海底栖息的鱼类，但它们也吃虾和鱿鱼。

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Bottom feeding in thinly capitalized banks is a treacherous pursuit for investors seeking greater upside potential.

FORBES: 8 Small Bank Stocks On Sale

Maybe yes, maybe no for the new Irish uptic is bottom feeding by any other name.

FORBES: Green Shoots Emerging In Irish Economy--Or Just Bottom Feeding?

Year-round, travellers are guaranteed sightings of loud sea lions, shy harbour seals, diving brown pelicans, hundreds of other birds, and the bottom feeding leopard shark.

BBC: In search of the California sea otter