nll

There was a dark dyed structure in nLL of Pekin ducks which was first observed ;

首次观察到外侧丘系核的尾段有一个深染的结构；

This paper deals with the mechanism of bypass channel and mainly discusses the theory , technics and interpretation method of using neutron Lifetime Log ( NLL ) to evaluate channeling .

文中分析了管外窜槽的形成机理，重点介绍了注硼中子寿命测井技术用于管外窜槽监测的原理、工艺及解释方法。

Live-firing and naval exercises are common on the NLL , so there were no extra grounds to panic on Tuesday .

在NLL附近实弹射击与海军演习时有发生，因此朝鲜方面对于周二的事件并没有额外理由感到恐慌。

According to the Yonhap , a DPRK patrol ship crossed South Korea 's Northern Limit Line ( NLL ), leading the South Korean Navy to fire warning shots .

报道说，当天上午，朝鲜一艘警备艇越过“北方限制线”，韩国海军“进行了警告射击”，但朝鲜警备艇“置之不理继续南下”，韩国方面开火射击，朝鲜方面进行了回击。