研制了皮带机和螺旋布料机具并应用于鱼跳面板堆石坝混凝土面板浇筑中。

Belt coveyer and distributing material spiral mac hi nes and implements were discussed and ap-plied to concrete plate casting of ro ck-fill dam.

youdao

他们一年花费超过一百万美元，用于鱼、鱼缸、水草、沙子、贝壳、鱼食，以及用于加热和清洁鱼缸的器具。

They also spend more than a million dollars a year for fish, tanks, plants, sand, shells, food and gadgets for heating and cleaning aquariums.

youdao

他们一年花费超过一百万美元，用于鱼、鱼缸、水草、沙子、贝壳、鱼食，以及用于加热和清洁养鱼缸的器具。

They also spend more than a million dollars a year for fish, tanks, planes, sand, shells, food and gadgets for heating and cleaning aquariums.

youdao

There's an angler fish at the bottom of the ocean that has a rod sticking up from the top of its head with a lure to capture other fish to fool them in thinking that this is something edible and then to themselves be devoured.

在深海中生活着琵琶鱼,这种鱼的头顶会长出鱼竿状的长刺,用于引诱和捕获其他鱼类,让它们误认为那是食物,然后它们自己就被吃掉了。

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