廓廓 1.。《新唐书·李密传》：“众附兵彊，然后东向，指撝豪杰，天下廓廓无事矣。” 宋 洪迈 《容斋三笔·邳彤郦商》：“然则是时 汉 室之危，几于不保， 郦商 笑谈间，廓廓无事。其功岂不大哉？” 2.辽阔貌。清 赵翼 《大雪戏作》诗：“苍天高高地廓廓，谁能力使两相拍？” 严复 《原强》：“然则神州九万里地，四十京之民，此廓廓者，徒土荒耳，是蚩蚩者，徒人满耳！”
游廓，走廊；阳台阳台或走廓，通常有顶并部分封闭，沿着建筑物的外部延伸。
A porch or balcony, usually roofed and often partly enclosed, extending along the outside of a building.
可采用多种钢轨廓形，使每种廓形与车轮均有一定数量的接触点，可以提高导向性能和总体的车辆运行质量，从而减少噪声和振动。
Use of a variety of rail profiles with a range of contact points improves steering and overall ride quality, and thereby reduces noise and vibration.
以刃边齿条为工具，测量廓面的直母线族误差，通过误差处理与分析获得齿廓总偏差和螺旋线总偏差。
Taking the straight-line-rack as the tool the error of straight generatrix is measured and by error analysis the tooth profile error and tooth orientation error can be obtained.
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