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1·The launching nose plays an important role in the incremental launching construction.

梁对增大顶推的跨度起到了重要的作用。

2·The length, rigidity and weight of a launching nose have significant influences on the internal forces of incrementally-launched main girder at construction stage.

导梁的长度、刚度及重量在顶推施工阶段对顶推主梁的内力有着重要的影响，其合理配置是全桥顺利顶推的关键。

3·The paper discusses experimental results of launching truncated-ogive-nose earth penetrating weapon into concrete targets.

介绍了截卵形弹头钻地弹对混凝土靶的侵彻试验研究结果。