helix的例句大全

Design of the Archimedean Helix Inlet in a Hydrocyclone AN AUTO-TRACKING PARABOLIC REMOTE-SENSING ANTENNA WITH DUAL MODE ARCHIMEDIAN SPIRAL FEED

水力旋流器中阿基米德螺线入口的设计阿几米德双模螺旋馈源的自跟踪反射镜遥感天线

This paper presents a method for machining of taper cutting tools with equal helix angle. The principle of the method is using taper helical curve with equal pitch to approach equal angle one.

文章提出了一种在经济型数控机床上实现等螺旋角圆锥螺旋线的加工方法，其原理是用等导程螺旋线去逼近此种曲线。

Tri-helix DNA is the core of the antisense and antigene technology. It control the expression and suppression of gene.

众所周知三链DNA是反基因技术及反义技术的核心，它控制着基因的表达及抑制作用，因此三链DNA也是目前的研究热点之一。