查询词典 breech screw

US Navy BL guns of the period had recoild buffers and fast tarversing mechanisms - they just lacked the interrupted screw breech and fixed ammo to make them QF - or RF rapid fire as they called it.

也已经出现。美国海军在这个时期的后膛炮都拥有驻退复进机以及快速回旋机构，它们与速射炮（英国人称为Quick Fire，美国人则称之为Rapid Fire）相比只缺乏中断螺纹炮闩以及固定式弹药而已。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。