黄铜

Considering its practicability of nonleaded freeutting brass, Our?II ?research examine a few of its other performance.

考虑到无铅易切削黄铜的实用性，本研究同时对几项其他性能作了检测。

The samples are received cutting test, and compare their chips withthose of HPb59?, we find that the cutability of nonleaded freeutting is70?096 of that of HPb59?.

将研制的试样进行切削加工，并将其切屑与HPb59-1的切屑进行比较，测得该易切削黄铜的切削性能可达到HPb59-1的70-80％。

The sample of nonleaded freeutting brass containing silicon is observed with electron microscope, we find that there is a clearance in the boundary between basal part?P phase and second phase particle?

将合硅的无铅易切削黄铜试样置于电子显微镜下观察，发现第二相质点γ相与基体β相的交界处有一间隙，说明基体与第二相质点间并未紧密结合。

Y phase. This indicate that basal part is not combine with second phase particle tightly, just equal to y phase inlaying P phase?s countless holes, this is the principle of the cutability of nonleaded freeutting brass.

可以认为，基体β相中存在着无数微小孔洞，孔洞中又存在一个体积稍小一点的γ相微粒，当车刀碰到γ相时，切屑自动折断，这是无铅易切削黄铜的切削原理所在。

Our Oriana beads are highly polished rhodium-plated brass, some with hand set crytals or hand blown glass.

我们奥里亚纳珠高度抛光铑镀黄铜，一些手工设置水晶或手工吹制玻璃。

You can choose from tin, copper, brass or painted in highly ornate or subtly textured patterns.

您可以从锡，铜，黄铜或高度华丽的油漆或具有特定结构的图案中选择。

Besides, in his career he'd attended many long meetings in close quarters with overexcited navy brass, and he knew exactly what it would be like.

此外，在他的职业生涯，他希望出席会议的许多长期在近距离与overexcited海军黄铜，他确切地知道它会等。

I cut brass rod of appropriate diameter and oversize in length.

i削减黄铜棒适当的直径和特大型在长度。

Monogram canvas, cotton lining, natural cowhide trimmings and handles.Golden brass pieces,Double zipper closure,Two inside patch pockets.Large, exterior pocket with zip.Extendable handle with a press button, natural cowhide vertical handle and anti-skid wheels.Handle attachment, removable address label.

Monogram 帆布，棉质衬里，天然牛皮饰边与手柄，金黄色黄铜饰件，双拉链开口，两个内侧贴袋，大型外侧拉链口袋，按钮式的可伸缩手柄，天然牛皮垂直手柄与防滑轮，手柄附件，可拆卸地址标签，手提行李尺寸。

Size: 16.9" x 11" x 16.9 - Monogram Mini Lin Canvas, polyester and cotton lining, cross grained calfskin trim - Shiny golden brass pieces - Zipper closure - 1 interior patch pocket, 1 phone pocket - Carried on the shoulder - Adjustable 3 holes leather strap PRODUCT ID: M95619 这款轻盈的单肩包以Monogram Mini Lin

帆布制成，融舒适精美于一体，散发出一种随意的都市时尚风韵。尺寸： 16.9" x 11" x 16.9 - Monogram Mini Lin帆布，涤纶和棉质衬里，交织条纹小牛皮饰边-抛光金色黄铜配件-拉链开合- 1个内贴袋，1个手机袋-肩背- 3孔可调节皮带参考： M95619

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。