spool 是什么意思 ?

spool 是什么意思 ? plastic spool是什么意思谢谢了,大神帮忙啊 spool flange , no more spool ear spool of copper and silver 这儿的spool是什么意思,是耳环么Archaeologists have determined that the complex-called Mound City-was apparently both a village and a burial site.■ Numerous artifacts have been found in excavations of the bu shell脚本中>/dev/null的含义shell脚本中有段使用sqlplus的部分：sqlplus ${user_id} spool spool_file; desc tablespool off;exit!请问这里”>/dev/null“是什么意思呢?谢谢!这里的日志指的是执行以下脚本在屏 spool是什么程序呀,有什么作用呢? traverse or spool winding 应该是一种缠绕方式,胶带的 spool:p5,整个要求是这样的,其中spool项下的要求看不懂,0.20,0.25mm brass wiretensile strength:950n/mm2spool:p5,k160weight:trial order 5000kgs 今天做翻译,有一个 spool type control valve,是翻译成 绕线轴式控制阀么,具体介绍下? double loop 谢谢具体回答.spool wire呢？下位的回答有道理，但是我还觉得不太准确，我提到的这些是关于铁丝的词。 问个中学物理题,英文的,和圆周运动有关The tape in a cassette player passes over the heads at a speed of 5cm/s and is taken up on a spool of diameter 1.7cm.The thickness of the tape is 0.01mm.The take-up spool is initially empty.Find an 英语翻译别拿翻译软件之类的东西哦~一般翻出来都是错的.The main split spool valve-mounted on the jack assembly and receives the main system's hydraulic flow the power unit.This valve directs the hydraulic flow to the snubbing un 4.Double Deck 24 carrier braider.2 No.5.Single Deck 24 carrier braider.6 No.6.16 spool wire winder.1 No.7.Stainless steel drum for Vulcaniser.8 No.8.Take up and pay off.16 No.有哪位高人知道这些都是那些机器?最好能知道中国哪个 英语翻译100% polyester 40/2 SZ double torsion TFO,raw termo fixed (steamed yarn) on industrial punctured spool100% polyester 40/2 SZ double torsion TFO optical whiteReferring to industrial spool for raw yarn can you send me a pic of it with the s 英语翻译The spooling-on phase of the reeling process was simulated by small scale bending testing to prepare for the full scale bending testing.It was necessary to be aware of how the bending tests (small scale and full scale) resembled the spool 是什么意思 是什么意思?