您要查找的是不是：
- U type ventilation system U型通风系统
- "J" type ventilation system “J”型通风系统
- Efficiency of the ATK Evaporative cooling ventilation system. ATK水濂蒸发式冷却通风系统的主要功能
- Construction of Mine Ventilation System in Zhaojin (Group) Co. 招金(集团)公司矿井通风系统建设。
- Operating under effective ventilation system or wear carbon mask. 有效抽风或配戴防毒口罩。
- The crankcase ventilation system carries fresh air through the crankcase. 曲轴箱通风系统要携带新鲜的空气通过曲轴箱。
- U type iron wire is mainly used for bundling up building materials or daily use items. 所需原料：镀锌铁丝、热镀锌铁丝和黑铁丝；
- The new winter ventilation system consisted of a perforated plastic tube. 新的冬季通风系统由带孔的塑料管组成。
- U type elbow is added to the vertical steam coil to increase elasticity and flexibility and reduce heat stress caused by expansion of heated coil. 在蒸汽盘管直段上部加装U型弯管以增加盘管弹性和柔性，减少了盘管受热时因膨胀而产生的热应力；
- It is indicated that W type ventilation goaf reduces the pressure difference between working face ends, and narrows air leakage range. 指出W形通风采空区明显降低工作面两端风压差，缩小漏风范围的效果。
- Corrosion failure case of U type tube in carbon steel heat exchanger has been analysised by means of XRD,EPMA and electrochmistry methods. 用电化学方法和金属电子显微分析技术，对碳钢换热器U形管高温区腐蚀失效原因进行了分析。
- The office has recently been refurbished and the ventilation system improved. 这间办公室最近重新修缮油漆过, 通风系统得到了改善。
- Variable air volume(VAV) ventilation systems. 变风量通风空调系统。
- Abstract Objective To explore the application of U type needle in continuous circular capsulorhexis for cataract extraction. 摘要 目的 探讨U型单针在连续环形撕囊白内障术中的运用。
- The new winter ventilation system consisted of a perforated plastic tube . 新的冬季通风系统由带孔的塑料管组成。
- The crankcase ventilation system for 4-stroke motorcycle should be improved. 四冲程摩托车用曲轴箱通风系统应当改进。
- What's the requirement for the forced ventilation system for crankcase? 发动机曲轴箱强制通风的要求？
- By straingauging, fatigue life tests and theoretic analysis it is shown that for the U type bellow of stainless steel ln the low-cycle fatigue range, 1050C anneal dose not reduce its fatique life. 通过应变测试、疲劳寿命试验及相应的理论分析证实，不锈钢U形波纹管在低循环疲劳范畴，经1050C退火处理不会降低疲劳寿命。
- Yunfu(GD) Hengbao Factory is specialize in the environmental protection type ventilation facilities and air filtration purification equipment , It is enterprises producing the air blower with earliest history in this area. 广东省云浮市恒宝通风设备有限公司（原云城风机厂）专业生产环保型通风设备和空气过滤净化设备，是本地区生产风机历史最早的企业。
- Adopted unique ventilation system and rotational direct current motor stabilize the hot airflow. 采用独特的导风系统及旋转式直流电机,恒定预热风量。
