黄铜

The polishing fluid is composed of Al2O3 micropowder with a grain diameter of 0.5-1.0 mum, coal oil, lard, plant oil and spindle oil, wherein Al2O3 micropowder is abradant, coal oil is solvent, the mixing liquid of lard, plant oil and spindle oil is as additive; and the polishing fluid is prepared by a mixing liquid which is composed of 2% lard, 2% abraser, 8% plant oil and spindle oil by volume and 88% coal oil. The polishing fluid can produce the H62 brass element with a uniform surface quality and a good surface roughness value up to 0.008 mum, has the characteristics of no eroding elements, effectively relieving mechanical score, good processing surface quality and can be used for decoration of the plastic metal material and surface polishing process before the material metallographic microscope analysis.

抛光液由粒径为0.5～1.0μm的Al 2 O 3 微粉、煤油、猪油、植物油和锭子油混合而成；其中Al 2 O 3 微粉为磨料，煤油作溶剂，猪油、植物油和锭子油的混合液作添加剂；抛光液按体积比由2％的猪油、2％的磨料、8％的植物油和锭子油的混合液、88％的煤油配制而成；该抛光液能够加工出表面质量均匀，表面粗糙度值达到0.008μm的H62黄铜工件，具有不腐蚀工件、有效缓解机械刻划作用、加工表面质量好的特点，可以用于塑性金属材料的外观装饰性加工，以及材料金相分析前的表面抛光加工。

The other bank of the stream was open ground - a gentle acclivity topped with a stockade of vertical tree trunks, loop-holed for rifles, with a single embrasure/ through which / protruded the muzzle of a brass cannon / commanding the bridge.

河对岸是一片迹地，一片平缓的斜坡，斜坡顶有一道木桩直立的排栅，排栅上开着枪眼，有一架黄铜大炮从唯一的一个炮眼上探出炮口对着铁路桥。

I picked some different sizes of aerofoil tube at the hobby store today when getting more brass rod and tube.

我挑选了一些不同规模的翼型管在嗜好商店今天，当越来越黄铜棒和管。

Additionally, I have decided to manufacture two (2) more brass tubing guides; forward and aft.

此外，我已决定制造2（ 2 ）更多的黄铜油管指南；弘扬和尾部。

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。

An air horn being turned in brass on the lathe.

空气非洲之角正在变成黄铜中对车床。

Here, you can see the Mabuchi 550 12-volt motors, the Graupner Speed-Profi 50 Reverse BEC Speed Controllers, the Master Airscrew 3.0:1 Ratio Gearboxes, the brass stuffing tubes with Oilite bearings and O-ring seals and the 3/16 diameter propeller shafts.

在这里，您可以看到万宝至五五零一二伏马达，格劳普纳速度Profi的50扭转选委会的速度控制器，主airscrew 3.0：1的比例，变速箱，黄铜填料管oilite轴承和O形密封圈和3 / 16 直径螺旋桨轴。

Anyway, Rick would ask me to try these different Alembic guitars, and they were always big and he""y with dense, exotic woods and brass hardware.

无论如何，Rick会经常让我去试一些Alembic的吉他，他们通常又大又厚重，总是使用奇特稀有的木材和黄铜硬件。

One of the coolest things about this kit is that all the rods are square brass.

其中最酷的事情，这个工具包是，所有棒的却是方的黄铜。

He knew brass is an alloy of copper and zinc.

他知道了黄铜是铜和锌的合金。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。