20. The cutting unit is provided with a particular arc-shaped cutting blade which is mounted on a cutter head and can be manually rotated.
切口器上有特殊弧形的切口刀，切口刀安装在刀盘上，且可手动旋转。
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21. The morphology and spacial distribution of the ore body are strictly controlled by the N-S arc-shaped tensional and torsional fractures.
矿体产出形态及空间分布，严格受近南北向弧形张扭性断裂控制。
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22. According to human body mechanics, the hand-touching part of the anti-collision handrail is arc-shaped for convenience and comfortableness.
防撞扶手的手扶部分按人体力学要求，手扶处有舒适合理的圆弧。
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23. An aequilate baffle plate is welded on the front part of the arc-shaped steel plate to prevent transplanted bone blocks from outward sliding.
弧形钢板的前部焊接一等宽挡板，可防止移植的骨块向外滑动。
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24. The bread supporting rod has two pieces, and the ends of the two pieces are respectively arranged in two arc-shaped slot segments of the CAM.
面包支撑杆为两件，其端部分别设置在凸轮上的两段弧形槽内。
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25. Ruyuan is located in the southern foot of Nanling Mountains, through the arc-shaped mountain, the terrain from the northwest to southeast tilt.
乳源位于南岭山脉南麓，贯穿弧形山系，地势由西北向东南倾斜。
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26. The results show the sheltering effect on the arc-shaped floating breakwater is related to the incident wavelength and the draft of the breakwater.
结果表明，圆弧型浮式防波堤的防浪效果与入射波波长和防波堤的垂向沉深密切相关。
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27. One end of the upper surface of the arc-shaped baffle of the upper cover is provided with a handle, and the other end is provided with a medicine box chamber.
另一端的上表面的弧形挡板上封面，是提供了一个口实，和另一端的是提供了一个医药箱厅。
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28. The key problem of mismatch control and manufacture of symmetric arc-shaped gears is perfectly solved by using suitable cutter tilt and new generating method.
29. The arc-shaped concave of the sunken part of the pillow, can effectively solidify the bone growth, and prevent the part of head resting on the pillow getting bald;
枕头的凹部的弧形凹陷可以起到对孩子的头部骨骼定型的作用，有效预防枕秃的现象；
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30. The Grand Theater is just like a crystal palace when the lights set off a harmonious entity of the white arc-shaped roof and the photosensitive glass curtain walls.
