您要查找的是不是：
- This is known as an overhead valve (OHV) configuration. 这被称为顶置气门(OHV)结构。
- The big overhead valve engine's power peaks at 4,600 rpm, while its 415 lb-ft. of torque tops out at 5,900 rpm before the 6,600 rpm redline hits. 大开销气门发动机的功率峰值在4600转，而其四一五磅-英尺顶部扭矩转速在5900之前的6600转红线访问。
- That oyster closed up its valves. 那个牡蛎把壳合拢起来。
- The overhead costs are ridiculously expensive. 日常开支太高了。
- Seagulls were circling overhead. 海鸥在头顶山盘旋。
- Her overhead smash went out of the court. 她的高手扣球打出了场外。
- A flock of wild geese flew overhead. 一群野鹅从头顶飞过。
- The airplane was immediately overhead. 飞机几乎就在正上方。
- I can hear a plane flying overhead. 我听到一架飞机正从上空飞过。
- Having a shell consisting of two hinged valves. 双瓣壳的有由两个开合的瓣组成贝壳的
- The city has decided to do away with overhead wires. 那个城市决定取消架在空中的电线指将把电线埋入地下。
- Reducing overhead take priority over increasing turnover. 与增加营业额相比，应优先考虑降低间接费用。
- Their office is in central Beijing, so their overhead is very high. 他们的办事处设在北京市中心，所以他们的日常开支很大。
- The trolley bus picks up current from an overhead wire. 无轨电车的电能是通过架空线供给的。
- overhead valves 顶阀
- Situated at the vertex or highest point; directly overhead. 顶点的在顶点或者最高点的; 头的正上方的
- A great congregation of birds flew overhead. 一大群鸟从头上飞过。
- Cars began using caps that incorporated two valves. 汽车开始使用装有两个阀门的油箱盖。
- Fill kill and choke valves with seawater. 将压井阀和阻流阀注满海水。
- A flock of gulls circled overhead as the boast sailed into the port. 船只驶入港口时，一群海鸥在船上方盘旋。
