查询词典 bore bit

In combination with sensitivity analysis, it is found that the main reason causing the fuse failure in bore is the lateral shock between the bourrelet and the bore surface. This shock produce huge lateral impulsive force and acceleration causing fuse mechanism plastic deformation and improper function. Besides, it may lead to fall-off in fuse safety.

造成引信瞎火的主要原因是由于弹丸在膛内运动期间，弹丸与身管内壁间的相互碰撞所产生的横向冲击加速度使引信保险机构产生多次重复振荡，使其产生局部塑性变形及破坏不能可靠解除保险所致；并可能导致引信膛内安全性下降。

Summary This design mission is a design that independence complete to the standard bore plank the boiler water supply discharge measures, completing to design the manual, the bore knothole design is an accuracy to measures the most important parts in inside in gauge, direct influence in quality in its function whole gauge even can use the sex.

摘要本次设计任务是独立完成对标准孔板的设计，完成设计说明书，孔板的设计是测量仪表中最为重要的部件，其性能品质直接影响整个仪表的精度甚至可用性。

A self-drilling anchor (10) for use in a friable material (1) comprises a body (12) having an axis (13), a flanged rear end (14), a drilling front end (16) and a generally cylindrical portion (18) therebetween having an outer surface (20) with a thread (22) disposed thereon, wherein the body forks, beginning at a predetermined distance from the flanged rear end, into a first leg (24) and a second leg (26), the first leg extending forwardly into a drilling tip (28) and having a generally rearward facing shoulder (30) angled obtusely outwardly with respect to the axis, wherein the body (12) has an axial bore (32) for receiving an elongate fastener (2), the axial bore (32) extending substantially through the flanged end (14) and the generally cylindrical portion (18) and leading to the generally rearward facing shoulder (30), wherein the anchor (10) has a drilling mode wherein the second leg (26) nests behind the generally rearward facing shoulder (30) of the first leg (24), and an anchoring mode wherein the legs are pivoted apart from one another.

一种用于易碎材料(1)中的自攻螺钉(10)，包括：主体(12)，其具有中心轴(13)、带有凸缘的后端部(14)、用于钻孔的前端部(16)和位于所述后端部和前端部之间的通常为圆柱状的部分(18)，所述圆柱状部分(18)的外表面(20)上布置有螺纹(22)，其中主体从距离带有凸缘的后端部的预定的距离处开始分叉为第一腿(24)和第二腿(26)，第一腿向前伸入钻孔尖端(28)，并且具有相对于中心轴向外成钝角的通常面向后的肩部(30)，主体(12)具有容纳细长状紧固件(2)的轴向孔(32)，轴向孔(32)基本延伸穿过带有凸缘的端部(14)和通常为圆柱状的部分(18)，并且通向通常面向后的肩部(30)，螺钉(10)具有钻孔状态和固定状态，在钻孔状态，第二腿(26)套在第一腿(24)的通常面向后的肩部(30)之后，并且在固定状态，腿彼此转动分离。

According to the analysis results , define a optimized pin bore surface design, which will guide piston pin bore design in future.

总结分析了活塞销孔结构的不同设计方案，并对比了不同结构在降低销孔表面应力峰值效果。

To analyse the motion of in-bore projectile; We can get the acting force between the projectile and the gun tube, the motion of gun and the attitude of in-bore projectile at any time.

详细分析弹丸发射过程中火炮及弹丸的运动情况，能给出任意瞬时弹丸与身管之间的作用力，弹丸在膛内的姿态以及火炮的运动参数

E., when the bourrelet keeps in contact with, or not in contact with, or impacts with the bore. The patterns of motion of a projectile traveling in an ideal tncreasing twist rifled bore are studied and compared with that of a projectile traveling...

求解了非对称弹丸在渐速膛线理想身管内的运动规律，并将该运动与等齐膛线身管内的弹丸运动进行了对比，由此得出若干结论。

Then, as Jesus fulfilled the role of propitiatory sacrifice (Rom. 3:25; I John 2:2; 4:10), he bore the fury of the intense wrath of God against sin, and bore it to the end.

那么，正如耶稣完成了角色的propitiatory牺牲（罗马书3时25分；约翰2：2 ； 4：10 ），他无端背负了暴跳如雷的激烈愤怒的上帝对单，并承担它进行到底。

In order to tackle the difficulties including the sidetracking, the reentrance of the main hole, the well bore trajectory control, and the poor drillability of the formation, some technologies are put forward, such as the sidetracking technology of compound holes, the pipe string reentrance technology of main holes, the well bore trajectory control technology, and the drilling speed increasing technology. All the technologies have been applied to the field successfully, greatly shortening the drilling cycle and guaranteeing the safe and fast completion of the well.

针对悬空侧钻、主井眼重入、井身轨迹控制和地层的可钻性差等多个技术难点，提出了复合井眼悬空侧钻技术、主井眼管柱重入技术、井身轨迹控制技术和钻井提速技术等方法，在现场应用中取得了显著效果，大大缩短了钻井周期，保证了安全快速完井。

Based on the theory of tribology and the wear characteristics of cylinder bore-piston ring, the regular micro geometric surface topography was honed on the cylinder bore using the technology of laser texturing.

基于摩擦学理论和缸套／活塞环的润滑磨损特征，采用激光微造型技术，在缸套内表面进行规则微观几何形貌的造型。

Top 顶端 Variable area flowmeters变面积流量计 The variable area flowmeter (Figure 4.3.7), often referred to as a rotameter, consists of a vertical, tapered bore tube with the small bore at the lower end, and a float that is allowed to freely move in the fluid.

可变区流量计（图4.3.7 ），通常称为浮子，由一个垂直的，锥形管口径与小口径在较低的结束，花车是允许自由移动的液体。

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&