送入成卷机的棉条被拉伸成薄层并卷绕在筒管上。
Slivers are fed through the lapper that smooths them to a thin layer of fibers which is wound onto a roll.
这些每个重约13．6公斤的筒管放置在精梳机上。
These rolls, each weighting about 13.6kg, are taken to the combing frame.
纤维薄层被拉细，加捻，形成的细纱被卷绕到筒管上。
The thin layer is attenuated, twist is inserted, and the resulting yarn is wound onto bobbins.
用于启动井下工具或装置、经井筒管子落下或泵入的球。
A ball that is dropped or pumped through the wellbore tubulars to activate a downhole tool or device.
在管柱被安装和下入井筒以前已经带缝或孔的井筒管子。
A wellbore tubular in which slots or holes have been made before the string is assembled and run into the wellbore.
为使水泥浆压入井筒管子中的渗漏通道而设计的补注水泥作业。
A remedial cementing operation designed to force cement into leak paths in wellbore tubulars.
我原想打烟筒管帽的，但是石头没有击中目标，穿过了屋顶上的天窗。
I was aiming for the chimney pot, but the stone fell short and went through a skylight in the roof.
我原想打烟筒管帽的，但是石头没有击中目标，穿过了屋顶上的天窗。
I was aiming for the chimney-pot, but the stone fell short and went through a skylight in the roof.
每个筒子纱的筒管内部必须贴有生产商的名字，生产日期，纱线说明。
Identification labels inside each cone listing vendor name, yarn description, and date code.
阅读用于多种形状的货件的快捷包装箱和三角形筒管的使用说明和指示。
Read specifications and guidelines about express box mailers used for a variety of shipments.
通过直接检测前罗拉输出速度，并由软件实现筒管卷绕速度和龙筋升降速度的改变；
By detecting the speed of front roller directly, the software changes the speed of tuber and lifter.
对于水平井井筒的稳定单相流动，提出了水平井井筒管流的“微元段”观点，从而简单实用地解决了井筒内的变质量流问题；
A "theory of micro element" and equivalent seepage flow was raised to solve the various mass flow of single phase in the horizontal wellbore.
对于水平井井筒的稳定单相流动，提出了水平井井筒管流的“微元段”观点，从而简单实用地解决了井筒内的变质量流问题；
A "theory of micro element" and equivalent seepage flow was raised to solve the various mass flow of single phase in the horizontal wellbore.
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