查询词典 screw

The lines in the P^3 will be mapped to the points in the P^5 by using the Klein mapping representation and the homogeneous Plücker coordinates, the dependency of screw system is determined, criterions of dependency are given, and the dependency on different geometrical conditions are listed.

利用Klein映射表示法，通过齐次Plücker坐标将P^3中的线映射为P^5中的点，来确定螺旋系的相关性，给出了相关性的判据，并列出了在空间不同几何条件下螺旋系相关性列表。

Dongguan Xingye Horologe Industry Fittings Factory specializes in high quality production of the special abnormity boards, hairpin, screw, and other kinds of 316, 314 import fittings of watchband and watchcase. The company was founded in 1998, with the unique geographical advantages of South China region at the national and international watch market ,plus years of painstaking efforts and management,the Xingye grows rapidly.

东莞兴业表业配件厂是一家专业生产高质量的特殊、异形花板、发夹、螺丝、巴管、子母通生身杆、冬菇头面钉等各类316、314进口表带表壳配件的企业，成立于1998年，凭借华南地区在全国乃至国际钟表市场上独特的区位优势，加上多年来励精图治、精益求精地苦心经营，兴业迅速地成长崛起。

At the present time, for example, the mixed vessel with a screw is a surprising machine, propelled by three thousand square metres of canvas and by an engine of two thousand five hundred horse-power.

到今天，比方说，一条机帆两备、具有螺旋推进器的船，那真是一种骇人的机器，它的帆的面积达三千平方公尺，汽锅有二千五百匹马力。

Thrust hydraulic system and screw conveyor hydraulic system of shield tunnelling machine were designed with electro-hydraulic proportional control technology.

采用电液比例控制技术对盾构掘进机推进液压系统和螺旋输送机液压系统进行了集成设计。

In order to control ground settlement and reduce ground deformation,thrust hydraulic system and screw conveyor hydraulic system of shield tunnelling machine were designed with electro-hydraulic proportional control technology.

为了控制地面沉降，减少地表变形，采用电液比例控制技术对盾构掘进机推进液压系统和螺旋输送机液压系统进行了集成设计。

A center point and nodal axis of hyperboloid of one sheet are found out, and the discriminance to distinguish which one of two reguluses belongs to the motion screw system is given.

给出了单叶双曲面的中心和主轴以及判别单叶双曲面上哪一族是运动螺旋轴线所分布的方法。

The use of screw fixation in the ilium as a means of spinopelic anchorage is safe and effectie in the treatment of neuromuscular scoliosis.

作为脊柱骨盆固定的一种方法，髂骨螺钉固定术在治疗神经肌肉性脊柱侧弯中是安全有效的。

Planted a dog collar in the procedure room just to screw with my head.

在眼科室放了个狗圈好扰乱我的心神

Objective To exploer the clinical outcomes,operation indiction and the related problems of dynamic hip screw in the treatment intertrochanteric fractures of femur.

目的 探讨DHS 治疗股骨粗隆间骨折的临床效果、适应证、存在的问题及对策。

Screw parameters in VGCN specified by tolerances in TN are expressed as inequation, which is inequation constraint in optimization of tolerance values.

研究了公差网络中的各公差对相应的旋量参数的约束不等式表示，从而构成了公差大小优化的不等式约束。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。