杆

You can carry left side bunker with down wind and you need to keep the ball out of the bunker if it is against the wind off the tee.

开球策略视当时风向而定，顺风时，球可越过左侧沙坑，第二杆留下良好的进攻角度；逆风时，开球尽量避开左侧沙坑，第二杆穿越右侧巨型沙坑，将球放在距果领约100码的地方。

30 The Wing and Thumb Library dialog box allows you to easily add industry standard wing nut , wing screw or thumb screw to your Drawing .

机翼和拇指图书馆对话框可让您轻松地添加行业标准螺母翼，翼螺杆或拇指螺杆您的绘图。

In the paper , first of all , it is introducetion about the circular worm gear reducer .then , it is the principles about

在论文中，首先，对蜗轮蜗杆作了简单的介绍，接着，阐述了蜗轮蜗杆的设计原理和理论计算。

Circular worm gear reducer is one of the members in the worm gear reducer family .

环面蜗轮蜗杆减速器是蜗轮蜗杆减速器的一种形式。

This project is to carry out theoretical and experimental investigation for the worm helical gear drive, to gain the necessary knowledge and understanding of its mating characteristics and performance.

本课题正是对蜗杆斜齿轮传动进行理论分析和试验研究，以求对蜗杆斜齿轮传动有一个初步的认识和了解。

A worm and worm wheel gives a large speed ratio but with significant sliding.

4，蜗轮蜗杆 Worm Gears 涡轮和蜗杆可获得很大的降速比，但是存在严重的相对滑动。

Through analyzing the cutting theory for the teeth of Archimedes worm and worm wheel ,this paper studies the method of modeling the worm transmission based on SolidWorks software and establishes the corresponding mathematics model.

通过对阿基米德蜗杆蜗轮齿面切削原理的分析，探讨了在Solid Works软件中阿基米德蜗杆传动的建模方法，并建立了相应的数学模型。

At last, the worm and grinding wheel models are used to realize grinding simulation of worm gearing with C++ programming language and OpenGL interface tool which are known as a basic tool for visualization in scientific computing.

最后，为了实现砂轮磨削蜗杆的运动仿真，论文应用科学计算可视化的基础工具OpenGL，并将前面得到的蜗杆和砂轮模型，导入到OpenGL中编程，语言环境为C++，实现了运动仿真。

3The microcosmic analysis of drill pipes: Through comparison metallographic analysis of drill pipes, this paper finds out the ultimate reason which its" performance are difference, then uses SEM to analyze drill pipes and studies crack and acanthopore, measures local chemistry component and the influence that Shot-peened to performance of drill pipes in it"s inside thickening transitional region, measures microcosmic rigidity of drill pipes.

本文的创新点：(1)提出了钻杆失效的过程和概念模型，即内表面缺陷-解理断裂-裂纹疲劳扩展-过载断裂，为解决钻杆失效分析中存在的困惑(各项基本检测参数基本合格，刺穿和断裂仍有发生)提出了分析方法和手段。

The key species in the pioneer species period is Achillea capillaries, Izeris denticulate, Salsola colliha., than the key species gradually change to Potentilla spp, Heteropappus altaicus, Cleistogenes spp in the species gradually prosperity period, Lespedeza dahurica, Stipa bungeana, Artemisia sacrorum in the species quasi-steady period, Lespedeza dahurica, Artemisia sacrorum in the species relatively steady period, Peri ploca sepium Bunge, Clematis fruticosa turcz, Spiraea spp in the bush pioneer species invasion period.

其中先锋植物物种期以茵陈蒿、苦买菜、猪毛菜为关键种；物种渐繁荣期以委陵菜、阿尔泰狗哇花和隐子草为关键种；物种鼎盛期多物种共存，关键种不明显；物种准稳定期以长芒草、铁杆蒿和达乌里胡枝子为关键种；物种相对稳定期以铁杆蒿、达乌里胡枝子为关键种；灌木先锋物种主要有杠柳、木本铁线莲、绣线菊等。

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