For example , the sunflower belongs to the species Helianthus annuus.

The rose on ◆ your hip tattoos the skin to have helianthus unexpectedly so big!

你臀部上的玫瑰纹身居然有向日葵那么大!

In reality, helical springs symmetric pitch near both ends.

实际上弹簧两端螺旋角逐渐变小.

Helical gears are used to transmit motion between parallel shafts.

螺线齿轮被用于传送在平行的轴之间的行动.

The technology of pulling forming method of helical vane is introduced.

介绍螺旋叶片拉伸成形工艺方法.

Roller kiln using helical gear drive, oil bath lubrication.

辊道窑传动采用斜齿轮, 油浴润滑.

Helical bevel gears have infinite life, and are 50 % more efficient than single worm gears.

螺旋锥齿轮有无限的使用寿命, 而且比单蜗轮齿轮要高出50%以上的效率.

The rapidly quenched copper alloys containing high density vacancies produced helical dislocations during aging.

具有高浓度空位的急冷合金在时效过程中产生了蜷线位错.

The transmission is mechanical double levels controlled with constantly meshed helical gears , and coupling sleeve shift.

变速箱采用常啮合,斜齿轮传动,结合套换档, 双杆机械操纵.

The existence conditions of helical equilibrium are discussed as a special configuration of the rod.

作为特殊的平衡状态,讨论杆的螺旋线平衡的存在条件.

Deformation of helical buckling appeared on rod during down stroke is also analyzed.

同时分析了下冲程抽油杆所产生的螺旋弯曲变形.

The polynucleotide chain is helical.

多核苷酸键是螺旋形的.

Heat transfer characteristics of separated helical heat pipe are analyzed in this paper.

阐述了分离式螺旋热管的换热特性,并提出了将螺旋热管应用于蓄冷系统的新方案.

Turkey Hall area of 2000 square meters, the external rectangular, internal is a helical structure.

土耳其馆面积达2000平方米, 外部呈长方形, 内部则是螺旋状的结构.

Helical bevel gears have an infinite life, and are 50 % more efficient than single worm gears.

螺旋锥齿轮有无限的使用寿命, 而且比单蜗轮齿轮50%以上的效率.

In twelve patients with suspicion of pulmonary sequestration, enhanced contrast helical CT was performed.

方法:12例疑肺隔离症病人接受了螺旋CT扫描.

Sophisticated plastic helical gear parametric modeling process was described in this paper.

阐述了在精密塑料斜齿轮参数化建模过程.

Our simulated results are of some technological interest in fabrication of helical TWT.

这为生产厂家在考虑成本的前提下,有效控制工艺参数,提供了具有实际指导意义的参考.

Helical circular mixture, fast and uniform stirring.

螺旋循环搅拌使得原料混合更加均匀 、 快速.

It is the helical clearance area in API connections after making up that contributes to leaking.

API螺纹啮合后存在的螺旋性间隙是导致螺纹接头泄漏的根本原因.

This series machine is suitable for batchsingle manufacturing column straight pinions, slope pinions, helical gear gear.

该机床适用于批量及生产加工圆柱直齿轮 、 斜齿轮 、 链轮及蜗轮.