作者: Li Jiayong , Wei Nengqiang , Liu Ning , Zhou Shu
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摘要: The invention discloses a cooling circulation system used for single-arm three-dimensional measurement scribing instrument. comprises an expansion part and water seepage part. at least one pipe body I (1), annular hollow air bag (4) wrapping the outer portion of (1) main ventilation (2) arranged in (1). II (6), (6) are spaced manner communicate with each other, is provided drainage hole (7), end port end, inserted surrounding rock, sealed. An inflated so that can be quickly fixed into rock drained centralized manner. When does not need to drained, deflated contracted, taken out reused.