nonthreatening

Even when issues have come up in the course of implementation, DeSutter said, the ensuing dialogues always have been carried out in a professional, serious and nonthreatening manner..德萨特说，即使在执行过程中出现问题，随后开展的对话总是以专业化、严肃和非威胁的方式进行。

Led by Apollo 9 astronaut Rusty Schweickart, the foundation has proposed a mission to a nonthreatening asteroid to test whether gravity from a hovering spacecraft could shift the asteroid's orbit..由阿波罗9号宇航员拉斯特·施韦卡特领导的这个基金会提出可以进行一次试验，看看对于一颗没有威胁的小行星，采用飞船绕其飞行，能否借助飞船的引力改变小行星的轨道。