防止装置

The 3rd closure maybe a bolted blank flange or a screw cap at the outlet of the bottom discharge, and shall

c第三道为在卸料口处设置的盲法兰或类似的装置，且应有能防止意外打开的功能。

The single mechanical seals of five PHP pumps, nine PLA pumps, two THD pumps and nine ZA pumps in the acetic acid plant were changed into dual mechanical seals based on not changing main parts such as casing, impeller, shaft, bearings house etc. to solve the leakage problems of flammable, explosive, poisonous, harmful substances, such as acetic acid, methyl iodide, hydroiodic acid, and propionic acid etc.

通过对醋酸装置中所选用的5台PHP型、9台PLA型、2台THD型及9台ZA型单级卧式脚支撑化工离心泵，在不改变泵壳、叶轮、轴、轴承箱等主要部件的基础上，将原来的单端面机械密封改造为双端面机械密封或串联式机械密封，以此来防止所输送的易燃、易爆、有毒、有害高危介质（如醋酸、碘甲烷、碘化氢、丙酸等）外漏。

The device as set forth in claim 9, wherein the bushing is configured to substantially prevent rotation and drift of the shear pin interfaces.

该装置所规定的索赔9 ，其中套管配置为防止大量轮换和漂移的剪切针接口。

When spring break accident, the rail side of the clamping device can effectively prevent the door down.

当弹簧意外断裂时，此装置能通过夹紧侧轨，有效防止门坠落。

Automobile anti-lock braking system is an active safety device. It can prevent vehicle sideslip and swing in the braking .

摘 要：汽车防抱死制动系统是一种能够有效防止汽车制动过程中侧滑和甩尾现象发生的主动安全装置。

So she came up with a simple device that prevents small children and pets from unrolling the toilet paper.

因此她想出一种简单的可以防止小孩和宠物展开厕所纸的装置。

The fundamental researches on ice crystals generating in statice supercooled water are analysed in this article. And homogeneous nucleation and heterogeneous nucleation ways of nucleation process are analysed and calculated. In general , water may freeze in tube and most likely blockage occur in the end, which make the unstable-instability of the system.

一般情况下，水在管内会发生结冰极并极可能产生冰堵，会造成系统运行的不稳定，本文对过冷水在管内结冰的影响因素进行了分析，并结合实验装置进行了相关实验，指出对冷却壁面的温度和表面状况进行控制是防止结冰的关键影响因素。

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。

Each thermantidote have the function of regulating independently,the temperature of each room can be controlled alone,and the independent fresh air can be sent into air condition room systematically.

同时各末端装置有独立的开关和调节功能，各房间的温度可独自调节与控制，且防止了空气的交叉感染。

Pinhole camera is used in this system and the defense device is built in. The introduction of isolated layer make the pinhole camera departs from high temperature and high pressure. Special active velamen is added to the camera to keep it clean and resist the dirt.

采用小镜头并装置防护壳，引入真空隔离层，使摄像头与高温、高压隔离，镜头上增设特殊的活性膜，可保持镜头的清洁，防止油污。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。