螺杆（拼音：luógǎn，英文：screw）：外表面切有螺旋槽的圆柱或者切有锥面螺旋槽的圆锥。螺杆具有不同的头，像图片中的头叫外六角螺杆。还有其他，例如大扁螺杆、内六角螺丝等等。
螺杆泵 Screw Pumps ; spiral pump ; rotary screw pump ; SEIM
幽门螺杆菌 Helicobacter pylori ; HP ; Pylori ; Helicobacter ; helicobacter pylori
滚珠螺杆 RNCT ; RNFCL ; RNFBL
螺杆直径 Screw Diameter ; Diameter of Screw Stem ; mm ; screwdiametermm
螺杆转速 screw speed ; screwspeedrpm ; Screw rotation speed ; Rational Speed of Screw Ste
密闭式螺杆泵 airtight screw pump ; hermetic screw pump ; sealed screw pump
单螺杆泵 helical rotor pump ; single screw pump ; Feeding pump
导螺杆 lead screw ; guide screw ; [机] driving screw
螺杆压缩机 screw compressor ; Helical screw compressor
传动螺杆 drive screw ; [机] driving screw ; drive bolt ; DRIVINGTAPPED ROD
Twin screw extruder (TSE) was widely used in polymer processing.
双螺杆挤出机是聚合物加工的一种重要设备。
参考来源 - 双螺杆挤出机中局部停留时间分布研究The paper provides a set of entire design principle about the semi-hermetic screw compressor and water chiller.
本文为半封闭螺杆压缩机和冷水机组提供了一整套完整的设计方法。
参考来源 - 带增速齿轮的半封闭螺杆压缩机转子型线研究及其冷水机组开发·2,447,543篇论文数据，部分数据来源于NoteExpress
我猜你能这么肯定的另一个原因是——众所周知——你吞下了一堆幽门螺杆菌以证明是它引起了胃病。
I assume another reason you were so certain is that—rather famously—you swallowed a bunch of Helicobacter bacteria to prove that it caused stomach problems.
泰勒认为，50%以上的急性幽门螺杆菌感染中，胃酸过少会持续几个星期。
Taylor suggests that in more than 50% of cases of acute H pylori infection, hypochlorhydria lasts for several weeks.
因此，螺杆转到了没有杠杆会去买账的地步。
And so the screw turns until those without leverage will buy.
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