inclination n. 1.倾斜;点头,鞠躬。 2.斜坡,倾度;【数学】倾角;【天文学】(轨道的)交角。 3.倾向,嗜好。 4.爱好的事物。 5.体质的倾向;斜角。 inclination of an orbit 【天文学】轨道交角。 express one's consent with an inclination (of the head) 点头表示同意。 an inclination to stoutness 容易发胖的体质。 against one's inclination违反着本意。 follow one's own inclination随心所欲。 have an inclination for 爱好,欢喜。 adj. -al
path path(ol.) =pathological; pathology. n. (pl. paths ) 1.(自然踏成的)路;路径;(马路边上的)人行道;(车子走不过的)小路;(竞走或自行车比赛的)跑道。 2.路线;路程;〔比喻〕(人生的)道路;(思想、行为、生活的)途径,方式。 3.【天文学】道,带。 approach path 【航空】进场航线。 moon's path 【天文学】白道。 path of a total eclipse 【天文学】全蚀带。 a path strewn with roses 撒满玫瑰的道路,安乐的一生。 a beaten path 踏出来的[走惯的]路;常规,普通方法。 break [blaze] a (new) path 开辟一条(新)路。 cross sb.'s path 碰见某人;挡住某人去路,阻碍某人。 set sb.on the right path 使某人走上正路。 path-breaker 开路人;闯将。 adj. -less 无路的,人迹未到的。
Green " s theorem is employed to find the quantity relationship among the constraints of heating rate , dynamic pressure and lift in reentry flight . the paper deduced the approximate solution of the optimal aeroassisted coplanar trajectories under the three typical constraints . the performance index to be minimized are either heat input , the total dynamic pressure , time during the atmospheric flight , the time integral of the square of the path inclination ; or maximize the time of flight during the atmospheric portion of the trajetory . an important conclusion is firstly obtained : under the three constraints above , the optimal aeroassisted coplanar transfers with the first forth kinds payoffs have the same optimal control laws 采用格林函数法,给出了同一平面气动力辅助变轨飞行的3种过程约束(气动加热率、动压、升力约束)条件之间关系的近似定量描述形成的飞行包络线.由此求解了航天器同时受3种约束条件时,各种性能指标下的同一平面气动力辅助变轨轨迹的近似解及相应的最优控制规律.文中对近似解与控制规律的内部结构作了细致的分析,得到了一些有益的结论