It involves using incredible body strength to suspend yourself sideways in mid-air to make a human flag - using a static object as the pole.
它需要绝佳的身体力量，好使你的身体以一个静物做旗杆，悬在半空，成为一面“人体旗帜”。
2
The pedal of its bottom is made of advanced alloy, and the pole and rear-wheel cover are made of high strength steel tube, which looks quite beautiful and firm.
车底踏板采用高级合金制造，车杆和后轮盖（刹车）刹车采用高强度钢管制造，美观坚固。
3
Series 7143 features an extra strength permanent magnet pole-piece and high inductance coil.