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单词 movement detector
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> as lemmas

movement detector
movement detector n. = motion detector n. at motion n. Compounds.
ΚΠ
1966 Jrnl. Physiol. 186 116 (title) Directionally selective movement detectors in the retina of the grey squirrel.
1982 Mining Mag. (Nexis) Nov. 464 The range includes a non-contacting radar controlled movement detector..[and] a conveyor belt slip and speed monitor.
1999 Evening Standard (Electronic ed.) 7 July Sgt Peirson recommends remote movement detector alarms for guarding expensive garden items such as sculptures, statues or other heavy objects. A sensor placed under the object will set off an alarm if an attempt is made to remove it.
extracted from movementn.
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