As I gradually master my buoyancy and hover 15 feet below the surface, I can see schools of small yellow groupers beneath the dive boat giving wide berth to a blade of a barracuda.

当我逐渐适应了浮力，盘旋下潜到水面以下15英尺以后，就看见成群结队的黄色小石斑鱼为了躲避梭鱼而藏在潜水船下方。

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A small knife with blades or a blade that can fold into the handle when not in use.

小折刀，小刀一种有几个刃或一个刃的小刀，不用时可折起来收进柄内。

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By means of a three vector equation system, the correlative equations of the undetermined parameters are thus deduced when the small disturbance theory is applied to multiple blade rows.

通过三个矢量方程组，系统地归纳了小扰动理论应用于多排叶片时各待定系数的关联方程。

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But the pods are so small and tight that he can barely split them open with his penknife blade to show me the bean inside.

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Small children sometimes stop to talk to the crew and watch them work, especially if the hopper blade is making a lot of grinding and crunching noises while it pulverizes something big, like a stove or a couch.

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