螺钉的头

The 3D-model of the brake band, countersunk head bolt and Friction Flake is established, and the frictional contact problem of brake band and friction flake was analyzed with the large-scale nonlinear finite element analysis software MSC.

以某超级油轮的锚机带式制动器为研究对象，建立了制动带、沉头螺钉和摩擦片的三维实体模型，并应用大型非线性有限元分析软件MSC。

After anesthesia, the guinea pigs'scalp surface was exposed and two stainless screws (5 mm length and 1.2 mm diameter) were implanted at 6 mm in front of and 10 mm behind bregma, as reference electrode and recording electrode. In the middle, a third stainless screw was implanted as ground electrode. 3 days later, awaked guinea pigs were fixed in multifunctional head-body apparatus. RETI-port system was used to record PVEP of control group and experiment group.

麻醉后，在前囟前6 mm、后10 mm及矢状缝正中处钻孔，均植入长5 mm、直径1.2 mm的不锈钢螺钉作为参考电极、记录电极和地极。3 d后，将清醒状态下的豚鼠固定于自制多功能头身一体化固定台面上，采用RET I-port系统(Roland Consult，德国)分别记录对照组和实验组图形视觉诱发电位的变化。

To install the fixed filler on the corner cabinet, use a ф4.2MM drill to drill a hole on the bottom panel at a place near the fixed filler. Use pneumatic screwdriver to turn at the hole positions to form countersink holes. Use 4*50 self-tapping screws to secure the fixed filler on the bottom panel. Keep

转角柜固定封板的安装，先用ф4.2MM的直钻在柜底板靠近固定封板处打孔，/然后用风批头在打孔处转动几下形成螺钉沉孔，再用4*50的自功钉把封板固定在柜底板上/安装可调脚将柜底保持朝上，然后正面进入50MM画线并装好柜脚座。

What are the two degrees of angles commonly found on countersunk screws?

哪两种角度是沉头螺钉常用的？

In fear of screw breakage, the rst 10 cases had soft cerical collar for 12 weeks, but 2 had undesired occipitoatlantal fusion.

由于害怕螺钉断裂，头10个病人使用软颈托12周，有2例出现不希望的环枕融合。

Orthopaedic trauma experts consider using locking head screws in 5–25% of all fractures treated with plate osteosynthesis.

骨科创伤专家会在需要行钢板截骨术治疗的所有骨折的5–25%中考虑应用锁定头螺钉。

Methods 68 cases with femoral peritrochanteric fracture from January, 2002 to December, 2007. 25 were treated by Gamma nail, 25 of them were treated by DHS, DCS and 18 of them were treated by HCS.

2002年1月～2007年12月收治的股骨转子间骨折并通过手术治疗的68例，采用Gamma钉固定25例、滑动加压鹅头钉固定25例与空心加压螺钉固定18例。

Natural aluminium, for 10mm boring in connection with torx head screw

铝合金，用于梅花头螺钉M1611/20与10mm的钻孔连接

While an 88-N proximal traction force was applied to tension the graft, it was fixed in the fibular head tunnel with a 7 mm 23 mm bioabsorbable screw while the knee was flexed to 30, in neutral rotation, and with a valgus force applied to reduce any potential lateral compartment gapping.

施加约88N的牵引力拉紧移植物，在膝关节屈曲30°、旋转中立位、施加内翻力降低任何潜在外侧室间隙时用7mmX23mm生物可吸收螺钉固定于腓骨头隧道。

The post of the screw is attached to the hex end

螺钉杆部和GSS III上钉扳手的六角头

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐