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The wall must be protected against chemical attack from highly corrosive components of the combusting gases. 必须把室壁保护起来以防止来自燃气的高度腐蚀性成分的化学侵蚀。
Corrosion fatigue. A type of failure that results from the simultaneous action of a cyclic stress and chemical attack. 腐蚀疲劳:由循环应力和化学腐蚀同时作用导致的一类失效。
Because HL-105 are fully saturated, they exhibit excellent heat stability and resistance to chemical attack. 由于HL-105是全饱和结构，所以具有出色的热稳定性和抗化学作用性能。
The resistance to chemical attack of NSAAS cement in acid solution, sulfate solution, sea water was studied. 研究了中性钠盐碱矿渣水泥在酸性溶液、硫酸盐溶液和海水中的抗化学侵蚀性能。
Terrorists were planning a chemical attack in London similar to the outrage on the Tokyo underground, according to police and the security services. 警方和安全机构人员说，恐怖分子计划在伦敦制造一起类似于日本东京地铁沙林毒气事件的化学袭击。
In cases of doubt the changes following hydrogenation, bromination or other chemical attack upon the double bond can be studied. 在有疑问时可以研究双键的氢化，溴化或其他化学反应所引起的变化。
The resiliency and structure of expanded graphite molded packing are not affected by chemical attack, consequently it provides effective seal without any torque loss. 膨胀石墨填料环的回弹性和结构将不会被化学介质所侵蚀。能提供有效的密封作用，并无任何螺栓扭矩损失。
Fears of a chemical attack on a busy Central London street which led police to evacuate the entire area was reportedly caused by a pot of burning chillies. 一锅正在烧煮的辣椒，据报导引发了伦敦中区一条街道陷入遭受化武攻击的恐惧，导致警方疏散全区。
It was the world's first major chemical attack using sarin, a nerve agent which attacks the respiratory system. 这是世界上首宗使用沙林神经毒气施袭的重大化学武器事件。
The rusting of iron is only one example o corrosion,which may be described as the destructive chemical attack of a metal by media with which it comes in contact,such a moisture,air and water. 铁生锈仅是腐蚀的一个例子，它可描述为与金属接触的介质如湿气、空气和水对金属的破坏性化学侵蚀。
The rusting of iron is only one example o corrosion, which may be described as the destructive chemical attack of a metal by media with which it comes in contact, such a moisture, air and water. 铁生锈仅是腐蚀的一个例子，它可描述为与金属接触的介质如湿气、空气和水对金属的破坏性化学侵蚀。
She cast her eyes down to avoid direct eye contact. 她垂下双目以避免对视。
Iron rusts at its exposure to the open air on account of the corrosion made by the destructive chemical attack of a l coming into contact with such media as air，water and moisture. 金属在接触空气、水和湿气等介质时会受到破坏性的化学侵蚀，由于这种腐蚀，铁暴露在露天时要生锈。
Iron rusts at its exposure to the open air on account of the corrosion made by the destructive chemical attack of a metal coming into contact with such media as air，water and moisture. 金属在接触空气、水和湿气等介质时会受到破坏性的化学侵蚀，由于这种腐蚀，铁暴露在露天时要生锈。
I'll book you on a direct flight to London. 我将为你预订直飞伦敦的航班。
In the process, some highly reactive oxygen molecules escape and make chemical attacks on anything in sight. 在这个过程中，一些高活性氧分子逃跑，使化学攻击没有留下任何迹象。
His opening gambit at the debate is a direct attack on government policy. 辩论刚开始时,他的策略是先直接抨击政府的政策。
Objective To explore the occurring condition,influencing factors and correlativ e risk factors of anxiety and depress ion dis-orders after stroke and transient is chemic attacks. 目的探讨脑卒中及短暂性脑缺血发作（TIA）焦虑抑郁情感障碍的发生及影响因素。
He has chosen the most direct route. 他选取了最直的路线。
His opening gambit at the debate was a direct attack on Government policy. 他在辩论中的策略是先直接抨击政府的政策。