丝球

The results showed that single power source twin-wire submerged arc welding, which is one of alternative methods of submerged arc welding with high deposition rate, low heat input, can cater for manufactural demands of big diametrical full welding ball-valve's manufacturing.

结果表明，单电源双丝自动埋弧焊熔敷率高、热输入低，可满足大直径全焊接阀体球阀的制造要求。

Methods 32 non-extraction cases treated by arch expansion with straight Ni-Ti wire was selected and upper and lower arch width and the position in A-point and B-point before and after the arch expansion were measured respectively.

目的 探讨在直钛镍丝扩弓中，采用锡球与拉钩相结扎的方法避免扩弓分力引起前牙唇向移动的效应。

Baseball A large wire screen placed behind home plate to stop balls in batting practice.

打击练习场：置于本垒之后的大金属丝屏以便击球练习时停住球

Soars the clean ball silk wire drawing mechanical factory located at the Chinese silk screen production base----Hebei Province Anping County.

腾飞清洁球丝拔丝机械制造厂位于中国丝网生产基地----河北省安平县。

Soars the clean ball silk wire drawing mechanical factory located at the Chinese silk screen production base----Hebei Province Anping County.

安平腾飞清洁球丝拔丝机械制造厂位于中国丝网生产基地----河北省安平县。

Number of loaded circuits DN Value Preload Method for Providing a Preload Applied preload 3 row 1.00 turns 50000 Yes Constant Pressure Preload 1110 Type of guide Shaft process method Ball cage Splined portion Hollow shaft Ball Rolled None None None Recommended support unit on the Fixed Side type Recommended support unit on the Supported Side type Types of Nuts Threading direction Spacer ball BK30,FK30 BF30, FF30 Simple Nut Right-hand None Rigi...

载荷钢球圈列数 DN值预压预压方法预压负荷 3列 1.00圈 50000 有定压预压 345 导轨型号丝杠轴加工方式球保持器轴的花键部分中空轴滚珠滚轧无无无轴承支撑座固定侧的推荐方式轴承支撑座支撑侧的推荐方式螺母种类螺纹方向间隔钢球 BK15，BK17，BK20，EK15，EK20，FK15，FK20 BF15， BF17， BF20， EF15， EF20， FF15， FF20 简易螺帽右螺纹无轴方向刚性

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