{"first_sentence": {"type": "/type/text", "value": "\"If some machine or process is moving, if air is being blown, or if water is being pumped, then there is motion.\""}, "physical_format": "Hardcover", "subtitle": "Variable Frequency Drives", "last_modified": {"type": "/type/datetime", "value": "2008-04-29 15:03:11.581851"}, "weight": "1.2 pounds", "languages": [{"key": "/l/eng"}], "publishers": ["Cengage Delmar Learning"], "number_of_pages": 192, "isbn_13": ["9780766819238"], "id": 10929707, "edition_name": "1 edition", "isbn_10": ["076681923X"], "publish_date": "September 5, 2000", "key": "/b/OL8063403M", "authors": [{"key": "/a/OL2852748A"}], "title": "Electrician's Technical Reference", "type": {"key": "/type/edition"}, "subjects": ["Electric motors", "Electronics & Communications Engineering", "Variable speed drives", "Electricity", "Electric driving, Variable speed", "Technology", "Technology & Industrial Arts", "Science/Mathematics", "Engineering - Electrical & Electronic", "Counseling - Vocational Guidance", "Electrician's;Technical;Reference", "Technology / Technical & Manufacturing Industries & Trades", "Electric driving, Variable spe", "Automatic control", "Electric motors, Alternating c", "Electric motors, Alternating current"], "physical_dimensions": "9.4 x 7.4 x 0.7 inches", "revision": 1}