During solidification of hollow ingot, its solidification and quality are seriously affected by the heat transfer boundary conditions between inner sleeve of core and cooling medium.
在空心钢锭凝固过程中，芯子内套筒与冷却介质之间的换热条件对空心钢锭的凝固过程及质量有着重要的影响。
It is important for the beginner to note that the core pin extend completely through the sleeve, and is attached to the back plate.
对于初学者来说重要的是注意型芯延伸完全穿过顶管，并且安装在底板上。
A valve core is coupled to a portion of the sleeve, opposite to the flange portion.
阀门的核心是耦合的袖子，对面法兰部分的一部分。
To introduce the points needed to be attended during machining the die blank and die sleeve and inserting die core.
介绍拉丝模模坯、模套的加工及模芯装镶过程中应注意的要点；
The unidirectional valve comprises a unidirectional valve sleeve, a valve core, a valve seat and a spring.
单向阀由单向阀套、阀芯、阀座和弹簧构成。
The invention comprises a handle and a drill bit, wherein the drilling bit has a trocar structure consisting of two parts, namely a sleeve and a tube core needle.
本发明包括手柄和钻头，钻头为套管针结构，包括套管和管芯针两部分组成。
The strain clamp comprises an internal thread pull anchor, a sleeve, an inner-cone external thread core sleeve, an outer-cone elastic clamp core, a bush, and the like.
由内螺纹拉锚、套管、内锥外螺纹芯套、外锥弹性夹芯、衬套等组成。
The sleeve is horizontally installed in the valve core in the form of transverse movement.
套筒呈横向运动的形式横向装于阀芯中；
The sleeve is horizontally installed in the valve core in the form of transverse movement.
套筒呈横向运动的形式横向装于阀芯中；
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