flat trajectory meaning in English

低伸弹道
平射弹道
平直轨迹

The analysis solution of outer trajectory about low speed and flat trajectory is deduced out
推导出了计算低速低伸外弹道的解析式。
Article 86 the construction of a shooting range or other facilities that will possibly affect flight safety is prohibited within the area extending 30 kilometers from the edges of an air route , unless it is a shooting range for flat trajectory light weapon
第八十六条在距离航路边界三十公里以内的地带，禁止修建靶场和其他可能影响飞行安全的设施；但是，平射轻武器靶场除外。
On the basis of solving ballistic equation in real - time , the authors solved the unified calculation problem of non - flat trajectory comprehensive coefficient under the condition of strong constraint , found the estimating method of flat trajectory comprehensive coefficient , carried out the generalized design of solving trajectory model in real - time , and given a program flawchart
摘要根据基于弹道方程的实时解算算法，解决了强约束条件下非低伸弹种弹道综合系数的统一计算问题，找出低伸弹种弹道综合系数的估计方法，进行了弹道实时解算模型的通用化设计，给出了程序流程并进行了测试。