... center crossing of diamond K型菱形道岔 center drain 中心沟 center line of track 线路中心线 ...
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When there is extensive caseation and the granulomas involve a larger bronchus, it is possible for much of the soft, necrotic center to drain out and leave behind a cavity.
当存在广泛的干酪性坏死并且肉芽肿累及较大的支气管时，大量的坏死物排出，留下空洞。
The results indicate that the hatch overflow is not suitable to drain water of center strip in superelevation section.
分析表明 ，黄土地区公路超高路段排水不宜采用中央分隔带开口漫流方式 ；
Peripheral autoroutes drain traffic from the city center.
外环高速公路把市中心的交通流量引开。
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