Delta ii是英语单词，中文意思是“德尔塔II型火箭”，是一种由美国洛克希德·马丁公司制造的运载火箭，主要用于将重量不到6吨的卫星送入轨道。
以下是9个含有Delta ii的例句：
1. Delta II rockets were used for many important space missions, including launching the Mars rover Opportunity.
（Delta II 火箭曾用于许多重要的太空任务，包括发射火星勘测车 Opportunity。）
2. The final Delta II rocket launch took place on September 15, 2018, marking the end of an era in space exploration.
（最后一次 Delta II 火箭的发射于xx年xx月xx日进行，标志着太空探索的一个时代的结束。）
3. The Delta II rocket was retired after almost 30 years of service, during which it launched over 150 missions.
（Delta II 火箭在近xx年的服役后退役，期间它发射了超过150次任务。）
4. Delta II rockets were known for their reliability and affordability, making them a popular choice for many satellite launches.
（Delta II 火箭以其可靠性和经济性而闻名，使它们成为许多卫星发射的热门选择。）
5. The Delta II rocket was designed to be flexible, able to carry a variety of payloads and adapt to different mission requirements.
（Delta II 火箭的设计具有灵活性，能够运载各种有效载荷并适应不同的任务要求。）
6. One of the most famous Delta II rocket launches was the launch of the Kepler space telescope, which discovered thousands of exoplanets.
（最著名的 Delta II 火箭发射之一是开普勒太空望远镜的发射，该望远镜发现了成千上万个系外行星。）
7. The Delta II rocket had a distinctive white and orange paint scheme, making it easily recognizable on the launch pad.
（Delta II 火箭具有独特的白色和橙色涂装方案，在发射台上很容易被认出。）
8. Delta II rockets were often used for military and intelligence missions, as they could quickly and accurately place satellites in specific orbits.
（Delta II 火箭通常用于军事和情报任务，因为它们可以快速、准确地将卫星放置在特定的轨道上。）
9. The Delta II rocket was a workhorse of the space industry for many years, playing a crucial role in advancing our understanding and exploration of space.
（Delta II 火箭在太空工业中工作多年，对于推进我们对太空的理解和探索发挥了至关重要的作用。）
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