Question

请帮忙翻译一下这一段话

要求：人工，准确。谢谢。

In addition, a further group of flights — the I missions — were planned. Lunar Orbital Survey Missions were conceived that would have seen a long duration orbital mission of the Moon using a Service Module bay loaded with scientific equipment. When it became obvious that later flights were being cancelled, such mission plans were brought into the J missions that were actually flown. The original pre-lunar landing program was more conservative but, as the 'all-up' test flights for the Saturn V proved successful, some missions were deleted. The revised schedule published in October 1967 had the first manned Apollo CSM earth orbit mission (Apollo 7) followed by an Earth Orbit Rendezvous of the CSM and LM launched on two Saturn 1Bs (Apollo 8) followed by a Saturn V launched CSM on a Large Earth Orbit Mission (Apollo 9) followed by the Saturn V launched dress rehearsal in Lunar Orbit with Apollo 10. By the summer of 1968 it became clear to program managers that a fully functional LM would not be available for the Apollo 8 mission. Rather than perform a simple earth orbiting mission, they chose to send Apollo 8 around the moon during Christmas. The original idea for this switch was the brainchild of George Low. Although it has often been claimed that this change was made as a direct response to Soviet attempts to fly a piloted Zond spacecraft around the moon, there is no evidence that this was actually the case. NASA officials were aware of the Soviet Zond flights, but the timing of the Zond missions does not correspond well with the extensive written record from NASA about the Apollo 8 decision. It is relatively certain that the Apollo 8 decision was primarily based upon the LM schedule, rather than fear of the Soviets beating the Americans to the moon.

Answer 1

另外，新的发射计划－代号I行动确认了。月球轨道探测计划的初步设想是通过登陆舱携带科学仪器进行长期的轨道观察。当探测越来约清楚时，后来的发射计划就取消了，一些被并入代号J计划中并延续下来。早期的预登月计划非常保守，但随着土星V号全方位测试发射的成功，有些计划被取消。更改的计划在1967年