预防

The key to preve n tion and reduction of the drill string failure lies in prevention.For this reaso n,in view of the different stressed characteristics of the different sections of the drill string in borehole,the research is conducted by dividing the drill st ring into four failure sections,namely,the section at the wellhead and the secti ons at the upper part,vicinity and lower part of the zero stress point,to inves tigate the essence and basic reason of the failure,and to put forward scientific and feasible preventing measures,thus,being advantageous to complete and system atic prevention and forecast of the drill string failure.

防止和减少钻具失效，关键在预防，为此，根据钻柱各部分在井内的受力特点不同将其划分为钻柱井口处、零应力点上部、零应力点附近、零应力点下部四个钻具失效段进行研究，查出其失效的实质及根本原因，提出科学可行的防范措施，有利于全面系统地预防预测钻具失效。

For coaches, trainers, players, parents of young players and health care practitioners, it is helpful to understand what roles football boot construction and it will play in both causing and preventing injury, as well as how custom orthoses (an external device applied to the body to relieve symptoms of pain or improve function) can be incorporated into an overall injury treatment or prevention program.

对于教练，球员，年轻球员的家长和从事健康保护职业的人，是非常有必要去了解足球鞋所扮演的角色是它可以起到同时起到预防和造成伤病的作用。同时，知道Custom Orthoses(自制的足底矫形器，以缓解疼痛改善功能)如何被纳入一个损伤治疗的整体或者预防计划。

So now, ongoing multicentre trials are evaluating the combination of bazedoxifene and conjugated oestrogens for efficacy at preventing bone loss and safety with regards to the breast and endometrium, to see if it can relieve hot flushes, prevent bone loss, without stimulating the breast or the uterus, concluded Dr.

目前进行的多中心试验正在评价巴多昔芬联合雌激素预防骨质流失的疗效及对乳腺和子宫内膜的安全性，考察其是否能减轻热潮红，预防骨质流失，且不会刺激乳腺或子宫。

Starting from the second day of quarantine period, the preventive medicine should be added for dipping.

3检疫第二天开始可添加广效性预防药物作药浴，即使鱼只看起来很健康，为降低潜伏病原体感染旧鱼的风险，预防措施还是要做。

The effectiveness of office system and educational interventions for improving delivery rates is well-supported, especially for lifestyle counseling and adult immunizations.

临床作业系统与卫生教育方案对於提升预防保健服务的利用率有显著的成效可获证实。本研究的结果可供有意推广预防保健服务的公共卫生计画参考。

This study is designed to investigate the effects of VK2 and cotherapy with sexual hormone on ovariectomized rats concerning prevention of osteoporosis as well as vessel calcification, blood lipid metabolism and coagulation.

本研究目的是观察VK2及其与性激素联合应用对去卵巢大鼠骨质疏松模型预防的效果，同时观察其对血管钙化、血脂和凝血系统的影响，为临床VK2应用于绝经后骨质疏松症预防提供实验证据。

Modern medicine to prove: camellia oil rich in oleic acid, and linoleic acid and linolenic acid content of the proportion is also larger and reasonable, and tea oil contains olive oil does not have a specific physiologically active substances, such as: camellia saponin, camellia saponin, tea polyphenols phenol, etc., including: the role of camellia glucoside has a strong heart, camellia saponin with thrombolytic effect, and tea polyphenols have lower cholesterol levels, the chemical prevention of cancer and many other effects, can prevent various cardiovascular and cerebrovascular diseases; Moreover, tea oil free can cause human carcinogen aflatoxin, as well as erucic acid, saponin, and gossypol and other harmful substances, the elderly can benefit from the consumption of tea oil, tea oil is therefore referred to as longevity oil.

现 代医学证明：山茶油中富含油酸，并且亚油酸、亚麻酸含量比重也较大且合理，茶油中含有橄榄油所没有的特定生理活性物质，如：山茶甙、山茶皂甙、茶多酚等，其中：山茶甙有强心作用，山茶皂甙有溶血栓作用，而茶多酚具有降低胆固醇、化学预防肿瘤等多种作用，能预防各种心脑血管疾病；而且，茶油不含可引起人体致癌的黄曲霉素以及芥酸、皂素和棉酚等对人体有害的物质，老年人可因食用茶油而得益，所以茶油被称为&长寿油&。

Massage and cleaning by tea fat every evening can prevent pruritus and sun crack on skin.

怀孕的时候用茶玉脂搽在肚皮上并轻轻按摩，可预防妊娠纹；怀孕后期皮肤拉伸，易出现瘙痒和干裂现象，每天晚上用茶玉脂按摩清洗，可预防皮肤瘙痒和干裂；长期坚持使用，可去除妊娠纹，或使之变浅。

Of all accidents,most(54.39%) were needle and sharp-cut injuries.Conclusion HCPs and policemen,especially HCPs would be easily exposed to HIV.It is important to implement universal precaution and reinforce self-protection measures to avoid HIV infection.

笔者对1997-2005年我国HIV职业暴露情况汇总，并对其危险性及防护措施分析、探讨如下。1对象与方法中国疾病预防控制中心性病艾滋病预防控制中心(NCAIDS，China CDC)正式成立于1996年，这也

The attendance should focus on the attendance on respiratory tract, nerve central high fever, bedsore, urinary system infection, constipation, functional training and psychotherapy.

护理重点是：呼吸道护理、中枢性高热的护理、压疮的预防和护理、泌尿系统感染的预防和护理，便秘的护理、功能锻炼及心理护理。

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