坦克停了下来，长长的炮管转过来瞄准了山脊。The tank stopped with the long snout of its gun turned to the ridge.火焰温度较低, 因而可使炮管寿命较长.The flame temperature is lower, thus giving a longer barrel life.二战时期的重型火炮的炮管,也是这么工作的.The heavy gun barrels of W...
Sloping walls on the bulk of the building create an optical illusion.大楼主体的斜墙给人造成一种视错觉。I managed to pull myself up onto a wet, sloping ledge.我终于爬上了一块潮湿倾斜的暗礁。Each firm will face a downward-sloping demand curve.每一家企业都将面临需求曲...