长度

Device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone .

黄铜的管乐器中改变空气柱的长度来变化音调的装置。

The law that the blasting effect varies with the length of bottom air column is analysed.

结果表明，底部空气柱长度与装药深度之比为0.4～0.8时，爆破效果最佳，爆破体积比传统的装药结构增大45％～55％，显著提高了炸药能量有效利用率。

The blasting effect of bottom air column charge is studied through a series of crater tests on cement mortar models.

本文通过水泥砂浆模型上的一系列爆破漏斗试验，研究底部空气柱装药的爆破效果，分析了底部空气柱长度变化对爆破作用的影响规律。

Based on the applied situation of deploying the air jamming corridor, the formation scenario and diffusion model of the chaff curtain wall is established, and the related parameters, length, width, thickness, drift velocity, bulk density, and tropism of the chaff, are described quantificationally.

在此基础上，依据布撒空中干扰走廊的应用实况，给出了箔条幕墙的生成想定与扩散模型，并对幕墙的长度、宽度、厚度、漂移速度、体密度及幕内箔条取向予以定量描述。

In another are of the house, the corridor leading to the bedrooms has openings at either end which facilitate an airflow past each room, and openings from each room to the rear yard draw on the cool, moving air from the corridor through the length of the house.

在另一项是在众议院，走廊导致房已开口两端有利于气流过去的每一个房间，每个房间开到后方堆场借鉴凉爽，移动空调的走廊通过的长度房子。

It has an internally built-in air cylinder in the carriage assembly, reducing overall length.

它在国内的运输装配内置的气缸，减少总长度。

A term is added to account for the effect of airflow through the slots on the air damping of the plate. The end effect of the airflow in the slots is also treated by substituting an effective channel length for the geometric channel length (i. e. the thickness of the plate).

该方程与传统雷诺方程的区别是在雷诺方程的左边增加了一个用以表示气体从槽流出所引起的阻尼效应的修正项，并考虑了槽中有限气流通道长度的端头修正。

Meanwhile, it reduces the length of single-hole fiber and increases the air hole size, and it can appropriately reduce the filling time.

同时减少单孔光纤的长度或增大空气孔的尺寸，可以适当减少填充时间。

A continuous air passage of at least 6.8 mm 2 shall extend for the length of the cap body.

一个连续的空气通过的面积至少6.8 mm 2 应该延长到笔帽的长度。

The genus comprises a vast range of similarly shaped fish which vary in length from the 1.5-metre albacore to the bluefin, which can measure more than three metres.

这些种类包括广泛的同样形状的鱼，长短不一从1.5米的albacore到金枪鱼，其长度可以超过3米。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。