2) Pit
[英][pɪt] [美][pɪt]
纹孔
1.
They are all alternate pitting except a few species.
结果表明 :该科植物在导管管腔的长度 ,管腔宽度上都有较大的差别 ;纹孔为具缘纹孔 ;纹孔的排列方式上 ,除少数种外均为互列式纹孔式 ;管间纹孔成群分布 ,且绝大部分呈现出规则的形状 ;在成群分布的纹孔内或边缘区域 ,有圆形点状突出物或由大小不同的孔做成的网状突出物 ,在该科中普遍存在。
3) Opening of pit membrane
纹孔膜开孔
4) threaded hole
螺纹孔
1.
Using the nonlinear function of finite element software-Marc,a FEM model for the contact between lining board and wheel was presented,which gives the relations of maximal stress to the size of threaded hole in the lining board.
利用有限元软件Marc的非线性功能,建立衬板与轮子接触的有限元模型,得到衬板上螺纹孔尺寸和最大应力的关系,提出了改善衬板受力的设计方案。
2.
Introduced the structure process of the capping plate, analyzed four threaded holes process request, adopted the special clamp to machining the four threaded holes.
介绍了盖板零件的结构工艺,分析了零件上的4个螺纹孔的工艺要求,针对4个螺纹孔的加工,通过采用专用的夹具,简化了生产零件的模具结构,实现了零件产品的最终要求,保证了质量,同时也提高了效率、降低了成本。
3.
Many factors which possibly lead to failure of extended tolerances of threaded holes are analyzed,and a discussion on the method of prevention is made.
对引起螺纹孔延伸公差带失效原因的各种因素进行了分析,并对采取的预防措施进行了讨论。
5) deep hole thread
深孔螺纹
1.
The deep hole thread processing efficiency height and the processing quality,directly affects the components the production efficiency and the precision.
深孔螺纹加工效率的高低和加工质量的好坏,直接影响零件的生产效率和精度。
6) thread hole
螺纹孔
1.
Working technique of self-tapping thread hole on aluminum part;
铝件螺纹孔自攻加工工艺
2.
Mainly introduced injection mold design method for the water tank with many thread holes and cut plastic blind hole, using the cylinder driving system, mold design idea was unique,the structure was novel and compact, gained good effect in production, it had important reference and guide function.
重点介绍了接水盘多个螺纹孔、减胶盲孔在模具设计中实现的方法,采用油缸驱动系统,模具构思独特,结构新颖、紧凑,并在生产中应用取得满意效果,对同类型模具结构设计有重要的借鉴与指导意义。
3.
In this paper,a fixture is designed to turn the thread holes on backwater gland in CNC lathe.
设计的夹具是用于在数控车床上车削回水盖螺纹孔的专用夹具,属花盘式车床夹具,并且带有分度装置,主要由过渡盘(与车床主轴连接)、夹具体、定位元件(分度盘、圆柱销、菱形销)、夹紧元件(压板)、分度装置(分度对定装置和分度盘)等组成。
补充资料：漆纚菱孔纹冠
漆纚菱孔纹冠 是古代用大漆浸染纤维织品的一种冠冕帽子。如甘肃省武威磨咀子三座汉墓发掘出土的“漆纚菱孔纹冠”（纚音始），是束发的帛与漆冠配套使用的帽子。菱孔纹是指纤维经纬交织成菱形孔纹。据称这种冠周围为一合裹细竹筋，头顶设一竹圈架，上搭一条纚片，似汉代之“进贤冠”。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条