黄铜

2" To 2" valves shall be constructed of dezincification

通径DN15至DN50阀门的材质应该是抗失锌现象的黄铜或青铜。

Valves shall be manufactured from dezincification resistant brass or bronze rated 240 psi at 250 F.

阀门材质应该是抗失锌现象的黄铜或青铜，压力－温度等级为121℃，240psi。

The effect of cold-deformation amount and annealing temperature on the dezincification of the unleaded free-cutting brass were investigated.

采用脱锌腐蚀深度测量方法，光学显微镜分析和SEM等分析方法，研究了不同的冷变形量和退火温度对无铅易切削铋黄铜的耐脱锌腐蚀性能的影响。

The microstructure of studied alloy was observed by scanning electron microscope and optical microscope and the mechanical, dezincification and cutting properties were studied.

利用扫描电镜、光学显微镜等手段对易切削黄铜的微观组织进行观察分析，并对其力学、脱锌和切削性能进行研究。

The tube alloy contains 85% copper which means that the alloy is less sensitive to stress corrosion cracking and dezincification than conventional brass alloys.

管子合金含有85%的铜，意味着合金的抗应力腐蚀裂缝和脱锌比传统的黄铜合金更强。

The paper presents some results obtained from a research about effects of rare-earthand boronrefining on the microstructure and dezincification corrosion properties of casting lead brass.

研究了加入稀土和硼细化处理对铸造铅黄铜组织和脱锌腐蚀性能的影响。

Dezincification of duplex brass , which is a form of corrosion. may occur when in contact with cart ain aggressive waters.

两相黄铜脱锌现象，是一种腐蚀，当接触到某些侵蚀性水时可能发生。

In this paper, the dezincification corrosion resistance of Mg-Sb brass was investigated by the methods of dezincification corrosion depth testing, optical microscope, SEM and XRD.

采用脱锌腐蚀深度测量方法、光学显微镜、SEM和XRD等分析方法，研究了镁锑黄铜的脱锌腐蚀性能和添加少量Sn、Al元素对其耐腐蚀性能的影响。

As a standard NIBCO bronze/brass balancing valves are made to be "Dezincification Resistant," which is a seal of quality and longevity.

作为标准，美国尼伯科青铜/黄铜平衡阀由"抗脱锌"材料制造，是一种优质和耐用的密封材料。

It pendulum swung to and fro with a dull, heavy, monotonous clang; and when the minute-hand made the circuit of the face, and the hour was to be stricken, there came from the brazen lungs of the clock a sound which was clear and loud and deep and exceedingly musical, but of so peculiar a note and emphasis that, at each lapse of an hour, the musicians of the orchestra were constrained to pause, momentarily, in their performance, to hearken to the sound; and thus the waltzers perforce ceased their evolutions; and there was a brief disconcert of the whole gay company; and while the chimes of the clock yet rang.

每当长针在钟面走满一圈，临到报时之际，大钟的黄铜腔里就发出一下深沉的声音，既清澈又洪亮，非常悦耳，然而调子和点子又如此古怪，因此每过一小时，乐队里的乐师都不由得暂停演奏来倾听钟声；双双对对跳着华尔兹舞的也不得不停止旋转，正在寻欢作乐的红男绿女不免乱一阵子；这且不说，钟声还在一下下敲的时候，连放荡透顶的人都变得脸如死灰，上了年纪的和老成持重的都不由双手抚额，仿佛胡思乱想得出了神。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。