那个圆锥头表示正方向。
锥头机螺钉垫圈-用于屋顶保持固定孔水密。
Cone head drive screw with washer - used on roof for keeping fixing holes watertight.
通过对生物质原料的力学分析，设计了开式成型的变径成型锥头。
Through the mechanical analysis of biomass materials, we designed a variable-diameter conical head with the open molding and verified our results using small wood shavings, sawdust and so on.
从下面向天空照射的激光会形成一个光锥，锥头在涡轮机的基部。
By shining the lasers into the air from below they were analysing a cone that had its point at the base of the turbine.
改锥不用时，可将多个改锥头存放于锥柄内或备用小盒内，用时可随意取出任一改锥头。
The screwdriver heads can be lodged in the taper shank or the spare capsule, and can be took out for use at will.
本实用新型是一种适合多种规格尺寸的螺钉使用，可方便地更换改锥头部分的万用改锥。
The utility model relates to a universal screw driver which can replace screwdriver head conveniently, and it can be applied to screws of various format dimension.
该改锥是由锥柄盖、空心锥柄、锥杆、锥杆套、永久磁铁和多个不同规格尺寸的改锥头组成。
It is composed of a taper shank cap, a hollow taper shank, an awl perch, an awl stem casing, a permanent magnet and screwdriver heads of different format dimensions.
对网架螺栓球节点中的锥头强度进行了弹塑性有限元分析，得出其应力分布、塑性区分布及极限承载力。
The finite element method program is used to analyze the elastic-plastic strength of cones in one domestic construction.
对网架螺栓球节点中的锥头强度进行了弹塑性有限元分析，得出其应力分布、塑性区分布及极限承载力。
The finite element method program is used to analyze the elastic-plastic strength of cones in one domestic construction.
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