a迷人秋风景 Enchanting fall scenery [translate] aSecond-generation computers,appearing in the early 1960s,were those in which transistors replaced vacuum tubes.The transistor was invented 第二代 计算机,出现 60年代初期,是晶体管替换真空管的那些。晶体管被发明了 [translate] ...
aSecond-generation computers,appearing in the early 1960s,were those in which transistors replaced vacuum tubes.The transistor was invented in 1947 but did not see widesp read use in computers until the late 50s.The transistor was far superior to the vacuum tube,allowing computers to b 第二代...
【1】The native Americans. 细节题。文章第一句Lacrosse, invented by the Native Americans, is a popular team sport in North America and a national summer sport for Canada.可知这项运动是美国本土人发明的。不超过3个词即可。 【2】Not until the late nineteenth century./In the late 1890s. 细节题...
limit on the threshold voltage required to get the electrons moving. This limit, which is sometimes termed the “Boltzmann tyranny” because it stems from the Boltzmann-like energy distribution of electrons in a semiconductor, puts a cap on the energy efficiency of this type of transistor. ...
PURPOSE: To improve the effective opening efficiency of a liquid crystal projector television by having the characteristics within the region enclosed by specific dot sets on an X-Y plane having specific coordinates, thereby optimizing the light condensing characteristics of a flat plate lens array. ...
000 with Tesla’s AC. Three years later, Niagara Falls Power Company, seduced by AC’s amenities, awarded Westinghouse the right to generate power from Niagara Falls and illuminate all of Buffalo, New York. AC obliterated DC once and for all. Then, a few decades later, thetransistor...
Amprobe has been inventing and manufacturing electrical test products for generations. They have one of the largest selections of multimeters andamp clamp metersin the market and are a good mid-range alternative. Their specialty is clamp meters (since they invented them), but they also produce a...
“If I change this tube for that one and then solder in a different transistor and use active electronics instead of passive, maybe then I’ll getthat sound.” People start experimenting with their gain staging,headroom, and all kinds of things to emulate the good old days. ...