Therefore, every country in the world is actively doing the research on digital light - duty Automatic Howitzer.但是却难以满足现代战争的需要, 因而世界各国都在积极研制数字化、轻型化的自走火炮.The final version, Ausf N, mounted a short 75 mm howitzer for use i...
There is a great deal of demand in modern electronics, however, for bandpass amplifiers.然而近代电子学对调谐的频率范围很宽的带通放大器提出很多要求.This paper presents a set of all - pole bandpass filter with equal inductances.本文提出一种间隙电容耦合的微带圆盘腔带通滤波器...
铬铁矿及(或)菱镁矿化通常是与蛇绿岩有关.Chromite and / or magnesite mineralization is usually related to the ophiolites.来自同位素年龄鉴定的证据指出,绿岩带在年龄上彼此变化相当大.Evidence from isotopic dating suggests that the greenstone belts vary considerably in age...
现在,本医院可提供最好的化验(见第17章)。Today the best tests are performed in the hospital .see chap. 17..医学化验证实她不是他们的亲骨肉。Medical tests established that she was not their own child.他苦苦等待了48个小时,化验结果才出来。He underwent an agonising 48-hour wai...