Astronaut propulsion unit Astronaut propulsion unit An astronaut propulsion unit (or astronaut maneuvering unit) is used to move an astronaut relative to the spaceship during a spacewalk. The first astronaut propulsion unit was the Hand-Held Maneuvering Unit (HHMU) used on Gemini 4. The Hand-Held Maneuvering Unit was the EVA "zip" gun used by Ed White on the Gemini 4 mission in 1965. The hand-held gun held several pounds of nitrogen, and allowed limited movement around the Gemini spacecraft. It was also used by astronaut Michael Collins on the Gemini 10 mission in 1966. The United States Air Force (USAF) Astronaut Maneuvering Unit (AMU)
Test of Chinese as a Foreign Language The Steering Committee for the Test Of Proficiency-Huayu (SC-TOP) was established in November 2005 under the direction of the Ministry of Education of R.O.C. Originally called the Chinese Language Testing Center and renamed in January, 2007, the Committee aims to develop and promote an effective Chinese assessment system, mainly the Test of Chinese as a Foreign Language (TOCFL), for Chinese learners worldwide to assess their Chinese proficiency. The SC-TOP has the following major missions: The Test of Chinese as a Foreign Language (TOCFL) is a standardized language proficiency test developed for non-native speakers of Chinese. It is the result of