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2. Test tube rack - Wikipedia

   en.wikipedia.org/wiki/Test_tube_rack

   Test Tube Rack. Test tube racks are laboratory equipment used to hold upright multiple test tubes at the same time. They are most commonly used when various different solutions are needed to work with simultaneously, for safety reasons, for safe storage of test tubes, and to ease the transport of multiple tubes.

3. Main distribution frame - Wikipedia

   en.wikipedia.org/wiki/Main_distribution_frame

   Small, single-sided MDF for a military base, 1940s Modern main distribution frame MDF at a central office with capacity for 67,000 users. In telephony, a main distribution frame (MDF or main frame) is a signal distribution frame for connecting equipment (inside plant) to cables and subscriber carrier equipment (outside plant).

4. 19-inch rack - Wikipedia

   en.wikipedia.org/wiki/19-inch_rack

   The ETSI rack is defined by the European Telecommunications Standards Institute (ETS 300 119). The distance of the right edge of the right mounting rail to the left edge of the left mounting rail is 535 millimetres (21.1 in). As 535 mm is very close to 21 inches, these racks are sometimes called 21-inch racks. The gap between the posts is 500 ...

5. Hitachi 917 - Wikipedia

   en.wikipedia.org/wiki/Hitachi_917

   The 917 has two trays for racks, plus a stat rack. Racks that hold five test tubes slide in on the left side of the machine. There are two reagents carousels on the right side of the 917. In the centre, towards the back, are the reaction vessels, where the chemical reactions take place.

6. Cable tray - Wikipedia

   en.wikipedia.org/wiki/Cable_tray

   Cable trays are used as an alternative to open wiring or electrical conduit systems, and are commonly used for cable management in commercial and industrial construction. They are especially useful in situations where changes to a wiring system are anticipated, since new cables can be installed by laying them in the tray, instead of pulling ...

7. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!