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The helmet is made of polycarbonate engineering plastics. It is provided with face guard, prevents strong impact from stones and sticks and protects human head.

盔体采用聚碳酸脂工程塑料制造而成，可防止石块、棍棒等器物的强力冲击，保护人体头部，带有面罩。

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The "forward" face guard theory and "backward" pharynx sound theory, developed from the Italian traditional Bel Canto, are the core threads that run through all ideas in various vocal music schools.

源自意大利传统美声唱法的“靠前”派面罩说、“靠后”派咽音说，是贯穿各声乐学派艺术理念的中心线索。

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As well as leg-pads and gloves, a player these days will wear a helmet with face guard, thigh pad and protection for chest, arms and abdomen.

ECONOMIST: Donald Bradman

If the Knicks get that far, they would almost certainly benefit from a key factor: They wouldn't have to face a star point guard in the process.

WSJ: For Once, Knicks Catch a Break

National Guard families, they face the same struggles as any other military family.

WHITEHOUSE: First Lady Michelle Obama and Dr. Jill Biden Address National Governors Association | The White House