战争期间，琼帮妈妈给战士们织围巾。During the war, Joan helped her mother knit scarves for soldiers.把公墓建成阵亡战士的永久性纪念碑的工作已经开始。Work began on establishing the cemeteries as permanent memorials to the fallen.为保卫祖国而献身的战士soldiers who died in def...
许多人这样说, 但我一看,以及长期加法器.Many say this, but I'm looking a longterm adder as well.将在存贮器数据寄存器的数据,根据指令载入加法器或累加器.Load the data to accumulator or adder according to the instruction.采用晶体管和隧道二极管的高速加法器和比较器.A Pattern Generator f...
refractory metals难熔金属For processing the high tensile metals: carbon stell common alloy stell, hard bronze forgeable castiron. etc.加工高抗张强度的金属: 碳素钢 、 硬青铜和可锻铸铁等.Gold retains its lustre for far longer than other metals...黄金保...