small arms [军] 轻武器
naval small arms 海军轻武器
underwater small arms 水下轻武器
research of small arms 轻武器研究
new concept small arms 新概念轻武器
small arms shooting target 轻武器射击目标
Instead of mechanical firing device, the frequency modulation electric-firing system is designed which may improve the firing frequency and shooting probability of the new small arms.
设计了调频电子发火系统，代替原有的机械击发、发射机构，实现了对新型弹药的顺序点火、单连发转化及射击频率的调节等功能，大大提高了轻武器的射击频率和命中概率。
参考来源 - 调频电子发火系统研究·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
N-PLURAL Small arms are guns that are light and easy to carry. (便于携带的)轻武器
The two sides exchanged small arms fire for about three hours.
双方用轻武器交火大约有3 个小时。
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