您要查找的是不是：
- Flat seating faces for low and medium pressures. 适用于中低压力的平面阀座表面。
- The thrust plain bearing with flat seat and liquid lubricating oil is adopted in designing ofrotary mechanism on flatbed, It sloves the problem of travelling bulky,heavy and longer minng equipment. 设计平板车回转机构，采用推力滑动轴承的结构及润滑油润滑的形式，较好地解决了平板车沿井下轨道运输体积大、质量重、跨度长的煤矿机械设备的问题。
- There is no tendency for the seating surfaces of swing check valves to gall or score, because the disc meets the flat seat squarely without rubbing contact upon closing. 旋启式止回阀的阀座表面不存在磨损或刮伤的倾向,因为阀瓣与平面阀座相适应,不会在关闭时产生摩擦接触。
- thrust ball bearing with flat seat 平面推力球轴承
- Plate heel is lifted first by design to prevent seat wear. Employs two spring- Ioaded plates with flat seats - Gives superior performance and bubble-tight shutoff with resilient seats. 在结构设计上首先提起阀瓣根部,防止阀座磨损。在平阀座上采用两个弹簧-负载阀瓣。-性能优异,具有气密性关闭性能的弹性阀座。
- He nabbed the best seat in the house. 他抢到剧院最好座位。
- Faster maintenance in-line. Flat seating faces can be lapped and checked for flatness easier. 在线维护更加迅速。平面阀座面能够研磨和检查,较容易实现平面度。
- The man jacked up his car to fix a flat tire. 那人用千斤顶把他的汽车顶起以修理漏气的轮胎。
- There was a swell in the city's population. 该市出现过人口膨胀。
- Our boy is doing swell at college. 我们的儿子在大学里表现出色。
- His brother is a swell at boxing. 他兄弟是个拳击能手。
- He stumbled over a stump and fell flat on his face. 他给树桩一绊，摔了个嘴啃泥。
- Tom had a fall and his under lip began to swell up. 汤姆跌了一跤，下唇开始肿起。
- He came in and took a seat opposite to me. 他走进来，坐在我对面的座位上。
- He spread the map flat out on the floor. 他把地图平铺在地上。
- I twisted round in my seat to speak to her. 我坐在位子上转过身来跟她说话。
- Our present lease on the flat expires next month. 我们这套公寓的租约下月到期。
- She got on the bus and picked a seat up front. 她上了公车,找了个最前面的座位。
- She took a seat in the back and watched. 她在后排找了一个座位坐下看起来。
- Small extra costs all swell the total. 零星的额外费用积少成多使总数增大了
