可防止的

To prevent epidemical disease prevalence caused by microorganisms in indoor air, a study was carried out to investigate the effect of ventilation, peracetic acid and ozonization on microorganisms reduction in the indoor air within a campus. The experimental results indicated that ventilation was an effective measure in reducing indoor air microorganisms with economy and simple operation.

为了防止室内空气微生物导致的传染病发生，对某校园室内的空气进行通风、过氧乙酸和臭氧灭菌降低微生物的实验研究结果表明，通风可以有效地降低室内微生物的浓度，是最为经济和易行的措施；过氧乙酸灭菌效果好，持续时间较长，可在不易实施通风情况下采用过氧乙酸灭菌；臭氧具有迅速杀菌的效果，使用时要与人保持一定距离，最好超出 1m。

The height of central part of the round cambered surface is equal or higher than the one of ring- shaped bulge. When the horizontal top side of internal cavity of encapsulation mold is pressed down to the heat sink so as to produce a deformation, the cambered surface can not be pressed to oppress the subjacent metal line, and the ring-shaped bulge can also prevent mold-overflow.

该散热片，适用于封装制程，具有一圆形弧面板部，并且其圆形弧面板部的中央是高于或等于环状凸起的高度；如此一来，当封胶模具内模穴的水平顶面下压至散热片上而使其产生变形时，圆形弧面板部就不会压迫到下方的金属线，而环状凸起同样也可发挥防止溢胶的功能。

By blocking direct sunshine with the sunbonnet against UV and heat energy to prevent the cab temperature from rising（under the same conditions, the room temperature will drop by 15℃,and the seat surface temperature will drop by 30℃）,we can not only protect the car appearance and the interior meters, adornments, equipments and fittings, prevent the car from fading or ageing, and save the driver's time, but also decrease the gas wastage, save energy, and reduce the unit continuous emission of harmful gases in the car, thus to protect our health.

通过太阳帽抵挡骄阳的直接照射有效屏蔽紫外线和热能，控制驾驶室的气温上升（同等条件下的室内温度可下降15℃，座椅表面温度下降30℃），不仅能有效呵护汽车外表、车厢内仪表、饰件、设备及其配件，防止汽车褪色老化，节约司乘人员的宝贵时间，而且能降低油耗，节约能源，减少车内有害气体在单位时间内的持续散发量，捍卫人们的健康。

Prevent premature ageing caused by overexposure to the sun with this daily SPF30+ face lotion. Encapsulated sunscreen helps protect sunscreen-sensitive while natural antioxidant green tea extract helps protect the skin against free-radical damage.

Kosmea保湿防晒乳液SPF 30+防止过度的日晒对皮肤造成的过早老化，密封的防晒剂有助于保护敏感的天然抗氧化剂，而绿茶提取物可保护皮肤免于自由基的伤害。

STRUCTURE: Titanium and composites used extensively, with particular emphasis on corrosion resistance; fully articulated three-blade coaxial contrarotatmg rotors have all-composites blades with carbon fibre and glass fibre main spars, pockets (13 per blade) of Kevlar-type material, and filler similar to Nomex; blades have non-symmetrical aerofoil section; each has ground-adjustable tab; each lower blade carries adjustable vibration damper, comprising two dependent weights, on root section, with further vibration dampers in fuselage; tip light on each upper blade; blades fold manually outboard of all control mechanisms, to folded width within track of main landing gear; rotor hub is 50% titaniuin/50% steel; rotor brake standard; all-metal fuselage; composites tailcone; fixed incidence tailplane, elevators, fins and rudders have aluminium alloy structure, composites skins; fins toe inward approximately 25°; fixed leading-edge slat on each fin prevents airflow over fin stalling in crosswinds or at high yaw angles.

结构：钛和复合材料广泛使用，耐腐蚀性能与特别强调，充分阐明三叶片转子同轴contrarotatmg有碳纤维和玻璃纤维的主要棒材全复合材料桨叶，口袋（每刀片13）凯夫拉型材料，类似的Nomex纤维填料；叶片非对称机翼部分，每有地面可调选项卡，每降低叶片振动阻尼器进行调节，包括两部分依赖重根，在机身进一步减振装置；小费每个刀片上轻；刀片倍手动舷外所有控制机制，折叠宽度内的主起落架的轨道；转子中心为50％titaniuin/50％钢；转子制动标准；全金属机身，复合材料tailcone，固定发生机尾，电梯，蛙鞋和方向舵的铝合金结构，复合材料的皮肤；鳍鳍在每个脚趾向内约25 °；固定领先的板式翅片防止了侧风或气流停滞在高偏航角度。

It is concluded:①The method does not traumatize the periosteum of the hard palate,thus alleviating postoperative maxillary deformity;②The buccal musculomucosal flap is generally long enough to reach across the incisive foramen and maintain good blood circulation;③The method benefits reconstruction of the levator sling and facilitates velopharyngeal closure.

该方法有以下优点：①手术不剥离硬腭区粘骨膜，对上颌骨的损伤很小，减轻了上颌骨的发育障碍；②采用两块带蒂颊粘膜肌瓣重建了腭帆提肌功能，促使异位的提肌悬吊再形成；③血运良好的颊粘膜肌瓣插入于软硬腭交界处，能使软腭充分后退，实现腭咽闭合，而且可有效地防止瘘孔的发生。

Insure the viscousity increase strain of slag surface, and it can able to avoid adhibit slags, and reduce curdle temperature, increase heat stream, and reduce carbon con-tent as possible.

针对性的确定保护渣的粘度，提高渣、金界面张力，可有效防止粘渣，另外害必须降低保护渣的凝固温度、适当的增加热流、尽量减少自由碳的配入量。

Such common ingredients are: Alpha Lipoic Acid Prevents cellular damage, reduces oxidative stress, lowers blood sugar Increases energy levels Powerful insulin potentiator Banana leaf extract Balances blood sugar levels Transports blood sugar into the cells and aids in controlling carbohydrate cravings Cayenne Raises the body's metabolic rate Citrus Aurantium A highly effective calorie and fat burner Helps to burn fat, and does not affect the central nervous system Increases energy levels CLA - Conjugated Linoleic Acid An important fatty acid that has been shown to reduce the body's ability to store fat and increase the body's use of fat for energy.

这种共同的成分是：阿尔法硫辛酸防止细胞损伤，可减少氧化应激，降低血糖上升能级强大胰岛素增效香蕉叶提取结余血糖运输机血糖进入细胞和艾滋病控制碳水化合物情怀卡宴提高人体的代谢率柑橘枳壳高效卡路里和脂肪燃烧有助脂肪燃烧，而且并不影响中枢神经系统增加能量水平CLA的共轭亚油酸重要脂肪酸已经初显成效，降低身体的免疫能力来储存脂肪，增加人体的使用脂肪作为能源。

TEM shows that drying by direct heating might result in hard aggregation of the tourmaline powder, while hard aggregation might be avoided by azeotropic distillation. Raman spectroscopy reveals that there are O_H and C_H on the surfaces of the tourmaline powder obtained by azeotropic distillation, which indicates that butoxy is chemically adsorbed on the surfaces of tourmaline particles, but not adsorbed on those formed by direct drying. X_ray powder diffraction shows that the intensity of diffraction peaks decreases after grinding. There is no damage to the tourmaline crystal lattice in the process of direct heating, azeotropic distillation, or ultrafine grinding.

透射电镜分析结果表明，直接加热脱去水或正丁醇会使电气石超细颗粒发生硬团聚，而共沸蒸馏法则可有效防止硬团聚的产生；拉曼光谱结果表明，共沸蒸馏法制备的电气石粉末表面存在O—H和C—H键，说明正丁醇在颗粒表面为化学吸附，而直接干燥法得到的电气石粉末表面则没有；X射线粉晶衍射结果表明，研磨过程降低了粉末衍射峰的强度，但直接加热干燥和共沸蒸馏干燥均未破坏电气石的晶格结构。

It adopt technique by preventing from coping screen in postil 、 siginate and seal. It can siginate for manuscript and stamper basing on PKI by 1024 RSA arithmetic,assure distinguishing and preventing disavow.It can find nonlicet sophisticate of attacker by data fingerprint,protect data facticity and integrity.

其中手写批注、签名和电子签章采取了防截屏拷贝处理技术，基于国际公认的公钥基础设施体系，通过采用RSA算法（1024位）对手写笔记和印章进行数字签名，能保证手写笔记和电子印章的可鉴别性，防止对操作的否认与抵赖，同时利用数字指纹技术能精确的发现攻击者对文档的非法篡改，以保护数据信息的真实性和完整性。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷