GIT

四角六片四角孔扭歪無限面體

在几何学中，四角六片四角孔扭歪无限面体是一种正扭歪无限面体，由考克斯特和皮特里于1926年时发现，并命名为多立方体。其对偶多面体为六角四片四角孔扭歪无限面体。四角六片四角孔扭歪无限面体是一种扭歪正多面体，可以看做是立方体的空间填充形式——立方体堆砌少去部分正方形面的结果。

Горизонтальный небоскрёб — высотное здание, как правило, имеющее на верхнем конце горизонтальные консольные конструкции этажей, либо горизонтальные конструкции этажей в виде моста, опирающиеся на одну или несколько вертикальные колонны-небоскрёбы. Горизонтальный небоскрёб может быть положен на опоры, как мост, или подвешен к ним, либо может опираться сплошным ленточным или плитным фундаментом на землю всей своей нижней поверхностью.

Liste von Burgen, Schlössern und Festungen in den Niederlanden

Diese Liste führt Burgen, Schlösser und Festungen in den Niederlanden auf. Ebenfalls in dieser Liste zu finden sind Herrenhäuser, Rittergüter und Landsitze.

MIL-STD-1553

MIL-STD-1553 is a military standard published by the United States Department of Defense that defines the mechanical, electrical, and functional characteristics of a serial data bus. It was originally designed as an avionic data bus for use with military avionics, but has also become commonly used in spacecraft on-board data handling subsystems, both military and civil. It features multiple redundant balanced line physical layers, a network interface, time division multiplexing, half-duplex command/response protocol, and can handle up to 30 Remote Terminals. A version of MIL-STD-1553 using optical cabling in place of electrical is known as MIL-STD-1773. MIL-STD-1553 was first published as a U.S. Air Force standard in 1973, and first was used on the F-16 Falcon fighter aircraft. Other aircraft designs quickly followed, including the F/A-18 Hornet, AH-64 Apache, P-3C Orion, F-15 Eagle and F-20 Tigershark. It is now widely used by all branches of the U.S. military and by NASA. Outside of the US it has been adopted by NATO as STANAG 3838 AVS.