后膛

In the first case the speed of boat would be added to the muzzle speed of the bullet, and in the later it would be subtracted-again in accordance with the theorem for the addition of velocity.

在第一种情况下，船的速度将和子弹的出膛速度相加，在后一种情况下，它是相减-再次与速度的合成定理相一致。

In order to solve the technical problems of cold pressing of de-hulled double-low rapeseed ,a new twin-screw press with a principle of combination of joggling and non-joggling was designed and manufactured,the pressing chamber of which had characteristics of multiple-stage compression and relaxation and a thin layer of when pressing.

为实现双低菜籽脱皮后的冷态压榨，研制了一种双螺杆榨油机，采用啮合式和非啮合式相组合的原理，在榨膛内实行多级压缩和松弛及薄料层压榨，其理论压缩比达23.0，榨膛长径比达11.5，压榨时间达180 s，并具有强大的物料自清功能，解决了脱皮菜籽仁在榨膛内输送困难的问题。

In this paper a new method is given for measuring thetemperature of propellant gases on the projectile in muzzles after firing.

本文给出一个新的测量弹丸射出膛口后弹后火药气体温度的方法。

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。

In breech-loading firearms that is withdrawn to insert a cartridge and replaced to close the breech before firing.

从后膛装弹的枪炮上的一个金属闩，在开火前我们先把这个闩向后拉，放进弹药，再把它关上，然后才能进行战斗。

A sliding bar in a breech-loading firearm that ejects an empty cartridge and replaces it and closes the breech .

排出空弹药筒代替它并关闭膛部的后膛装药框架中的滑栓。

A metal block in breech-loading firearms that is withdrawn to insert a cartridge and replaced to close the breech before firing.

从后膛装弹的枪炮上的一个金属闩，在开火前我们先把这个闩向后拉，放进弹药，再把它关上，然后才能进行战斗。

The parts of a gun that make up the breech.a metal block in breech-loading firearms that is withdrawn to insert a cartridge and replaced to close the breech before firing.

从后膛装弹的枪炮上的一个金属闩，在开火前我们先把这个闩向后拉，放进弹药，再把它关上，然后才能进行战斗。

The small hole at the breech of a gun through which the charge is ignited.

火门：弹药通过其点燃的枪后膛上的小孔

The result shows that the movement of the propellant grains is complex and relative to the ignition system very much. Guns with center tube ignition and flame-spreading system can alleviate the accumulation of the propellant effectively, and will have better performance.

结果分析表明：火炮点火后膛内火药颗粒的运动情况十分复杂，其运动规律与点传火的方式密切相关，点火孔均匀分布的中心传火管点火方式可以有效的改善发射过程中火药颗粒在弹丸底部堆积的现象，获得更佳的发射效果。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。