英文含义
JTTU的全称：Journey through the Universe (National Center for Earth and Space Science) | 中文意思：───穿越宇宙之旅(National Center for地球和空间科学)
JTTU的全称：Jet Transitional Training Unit (US Navy) | 中文意思：───射流过渡训练单元(美国海军)
JTTU的全称：Journey through the Universe (National Center for Earth and Space Science) | 中文意思：───穿越宇宙之旅(National Center for地球和空间科学)
JTTU的全称：Jet Transitional Training Unit (US Navy) | 中文意思：───射流过渡训练单元(美国海军)