The removal of faults through fabrication welding or repair welding is permissible only with approved procedure testing. 只在有批准的工艺试验的情况下,才允许进行焊接缺陷的去除工作和焊接修理工作。
Astronauts conducted astrophysics, bio-medicine, materials technology test and the Earth's resources, such as scientific exploration activities in the investigation. 宇航员们进行了天体物理,生物医学,材料工艺试验和地球资源勘测等科学考察活动。