您要查找的是不是：
- The pilot reports bad visibility over the airport. 飞行员向机场报告能见度很低。
- The cabin has a flat stone for a threshold. 这间小屋用一条扁平的石头做门槛。
- The treaty will be the threshold of lasting peace. 这个条约将成为持久和平的开端。
- Black smog reduced visibility to about fifty yards. 黑色的烟雾使能见度降到大约五十码左右。
- He was on the threshold of his career. 他的事业刚刚起步。
- Visibility was down to 100 metres in the fog. 大雾中能见距离已降至100米。
- He had never crossed the threshold of a bar before. 他过去从未进过酒吧的门。
- Scientists are now on the threshold of an important discovery. 科学家们很快就会有一项重大发现。
- visibility threshold 可视性临界值
- Dense fog is covering roads in the north and visibility is very poor. 浓雾笼罩了北部的公路，能见度很低。
- The tax threshold for a single pensioner is 450 dollars. 单身养老金领取者的征税起点是450美元。
- An executive with high visibility. 有很大吸引力的总经理
- The court is not legally justified in stopping at the threshold of the case. 一开始就使案件停止不前，法院这样做是完全不合法的。
- They are at the threshold of a new career. 他们正要开始干一番新的事业。
- Vertical visibility 50m in fog, sky obscured. 垂直能见度50米，有雾，天空不明。
- Visibility is good [bad, zero, one kilometer]. 能见度良好 [不好,零,一公里]
- Raised visibility range for VASI lights at night. VASI（跑道两侧灯光）在夜间视距内会高于地面。
- Yes. The visibility was excellent all the way. 能够。一路上能见度极好。
- There must be a threshold of thermal noise. 必有一个热噪声的门限值。
- Fog severely restricted visibility. 浓雾严重影响了能见度。
