Electrical engineering bridge; two sets of cable bridge in the same height parallel laying, during which the net distance should be at least the number of centimeters. Thank you hurry

There is a thing that can measure the location of the wire inside the wall, what is this instrument called? What is its working principle? Thank you in detail

Are common, can not find the words you go to sell the computer market to buy a can

After the HDMI cable is connected, set it as a dual monitor in the display properties, the computer monitor as the main display, the TV as the second monitor, select the extended main display, then open the movie player, drag and drop the mouse with the mouse to the second monitor (TV ), And then full-screen playback can watch movies on television, and this time you can computer monitor Fu top brother hired Xi Ding who Ding Jing start the game. Image does not interfere with each other; do not know whether your graphics card is a separate integrated sound card, I use the Dylan 4850 alone integrated sound card, you can achieve computer users and TV users put the sound, do not interfere with each other.

Heat shrink tubing in the cable connector is mainly from the seal and the role of a certain tightening force, the cable head heat, then the seal will be better