查询词典 gun bore

For naturally cooled monobloc barrel, its thermal condition in regular regime can be evaluated by measuring the outside temperature of two arbitrary rounds;(2) During a sustained firing process, unsteady heat conduction exists in a monobloc barrel, whereas unsteady and quasi steady heat conduction exist with actively cooled composite barrels, meaning that the thermal condition changes from uncontrolled to controlled;(3) Different combinations of the convective heat transfer coefficient h and thickness of gun barrel δ have much effects on cooling the bore temperature.

利用有限元软件分析了某大口径火炮身管的温度场分布，并对自然散热条件下的单筒身管和主动冷却条件下的复合身管温度场进行了比较，其结果为(1)身管温度场分布存在初始和正规工况阶段，后者的单筒身管热状态可以通过测定任意两发身管外表面温度来评估；(2)持续射击过程中，单筒身管始终处于非稳态导热过程，主动冷却身管则包括非稳态和准稳态两个过程，实现了身管热状态由不可控向可控转变；(3)对流传热系数h和身管壁厚δ的组合对降低内膛温度具有很大影响。

In order to contribute to analyse and compute easily setback moving devices on the projectile fuzes,and to make the fuze devisers be able to get the approximate acceleration curves with a few parameters such as tube length and muzzle velocity of the guns,the displacement-time curve and velocity-time curve of gun interior ballistic are fitted with the Logistic models,then the formula of projectile acceleration curves in bore are gotten by the derivation of the formula of fitting velocity-time curve.

为了便于炮弹引信后坐运动机构的分析和计算，能使引信工作者只根据身管长度和炮口速度等少量参数就能获得弹丸膛内加速度近似曲线，运用Logistic函数拟合火炮内弹道的位移－时间曲线和速度－时间曲线，再对拟合得到的速度－时间曲线求导便得到了弹丸膛内加速度近似曲线。

In this paper, based on the experiments. The changed law of underwater gun's bore are analyzed with the changed working conditions, including the change of working medium?

对坡膛压力在不同工作条件下的变化规律进行了分析，包括工作介质的变化、水深的变化、弹头质量的变化等。

It can be used to measure the pressure curve of bore of a gun with the replace ment of relative sensors to optical sunlight screens within hardware configurations.

在不改变硬件的条件下，更换配接的相应传感器，就可以用于枪膛压力曲线的测试。

By the agency of dynamic analysis, the simulation of APDS with this structure was carriedout while in the bore of the gun.

借助ANSYS瞬态动力学分析，对采用这种啮合结构的弹丸在膛内的情况进行仿真。

An enclosed space in the bore of a gun that holds the charge.

药室：枪炮的内腔装弹药的封闭空间

The underwater gun's bore pressure test system is built by experimental equipments and measurement instruments. A lot of experiments are carried out with this test system.

根据水下枪械的特点，组建了水下枪械坡膛压力测量系统，在此基础上做了大量实验。

A gun with a narrowed bore near the muzzle .

绞筒枪一种有向枪口逐渐变窄的枪膛的枪

But the advantages have not been displayed since the piezoresistive sensor does not adapt the adverse environment of powder burning gas and bore pressure of gun.

因此，从敏感机理本身来讲，半导体压阻式压力传感器应该是很适合进行火炮膛压测量的。

After another line-of-sight aim through the open bore, the gun was loaded and Colby gave a jerk on the lanyard.

又一次炮膛直瞄，大炮装弹，科比上尉猛拉引火绳。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失