您要查找的是不是：
- The pollen-blocker cream is a petrolatum-based ointment that serves as a mechanical barrier to allergens when applied to the lower nose region. 这种抵挡花粉面霜是一种以凡士林为主的软膏，当使用于鼻下区域时，可作为一种机械性屏障。
- With capping jet, a mechanical barrier in a way similar to the shear-sheltering effect was formed blocking the convective penetration. 发现对流顶部的射流会形成一种障碍，把穿透阻档，恰如“切变障碍”理论所描述的一样；
- intestinal mucosal mechanical barrier 肠粘膜机械屏障
- Injury of Colon Mucosa Mechanical Barrier in Chronic Hepatitis 慢性肝炎病人结肠粘膜机械屏障的损伤
- The police put up barriers to control the crowd. 警察设置障碍物,藉以控制人群。
- The crowds were pressing against the barriers. 人群向著栅栏推挤。
- Is this equipment tested for mechanical aptitude? 这台设备测定了其机械适应性了吗？
- Poor health may be a barrier to success. 健康欠佳可能成为取得成功的障碍。
- We need a mechanical digger to level the ground. 我们需要一台挖掘机来平整土地。
- The authorities put up barriers and struck a blow against freedom. 当局设置了障碍物，反对为争取自由的斗争。
- The horse took the barrier easily. 那匹马轻松地越过了障碍。
- His contention was that world trade barriers should be lowered. 他的论点是应该减少世界贸易的障碍。
- He have get over the language barrier. 他已克服了语言障碍。
- The move water have mechanical energy. 流动的水拥有机械能。
- A large crowd crushed past (the barrier). 大群的人挤过了(障碍物).
- The crowd linked arms to form a barrier. 群众臂挽著臂组成人墙。
- They soon overcame the language barrier. 不久他们便克服了语言上的障碍。
- Blinking is a mechanical action of the eyelids. 眨眼是眼睑的无意识动作。
- The ice skater rammed into the barrier. 溜冰者撞到护栏上了。
- The lorry shaved the barrier, scraping its side. 那辆卡车掠过路障，刮坏了车身。
