【简答题】____ is the way to work out the problem. 这就是解决这个难题的方法。 2、I have never seen ____ a clever child before. 我以前从未见过这么聪明的孩子。 3、Those two dresses are the ____. 那两条裙子是一样的。 4、The weather of China is quite sim...
【多选题】实际工作中,由于地形、地质、经济和社会发展各方面的需要,往往事先规定某些站的位置。剩下的问题就是如何布置其余的压气站。对于这类问题,我们一般事先知道下列条件In practical work, due to the needs of the surface, geological, economic and social development, the position of certain s...
A.
线路的起、终点和全长,某些规定站的站址,各进气点和分气点的位置The location of the line, the finish line and the length of the line, the location of the station, the location of the points and the gas points
B.
各段的任务输气量,各进气点的进气量和分气点的分气量,终点配气站的耗气量The task volume of each section, the air intake volume of each air intake point and the air distribution point, the air consumption of the terminal distribution station
C.
首站的进站压力PZ1,终点配气站进站的最低压力P2minThe initial station is pressure pz1, the minimum pressure p2min for the terminal distribution station
D.
已知或预选各段的管径、壁厚和最高的工作压力Pmax Known or pre-selected section diameter, wall thickness and highest working pressure Pmax
E.
可能选用的压缩机类型和技术参数。Known or pre-selected section diameter, wall thickness and highest working pressure Pmax