close in time中文什么意思

关井时间

• close:    adj. 1.关闭着的，密闭的。 2 ...
• time:    n. 1.时，时间，时日，岁月。 2 ...
• are close to all-time highs:    升近历来高位

例句与用法

1. The camshaft causes the intake and exhaust valves to open and close in time with the pistons which move up and down in the cylinders
   凸轮轴的作用是:当活塞在汽缸里上下移动的时候,控制进气门/排气门的及时打开和闭合
2. Conclusion modeling the covariance structure is especially important for analysis of repeated measures data because measurements taken close in time are potentially more highly correlated than those taken far apart in time
   结论由于在重复测量资料中，同一受试者的不同观测值之间具有相关性特点，故对其指定协方差结构尤其重要。