查询词典 beforehand

Because I don't like to decide beforehand what to watch.

因为我不喜欢预先决定要看什么。

You can come at any time, but you should let me know beforehand.

你什么时候来都行，不过最好先告诉我一声。

It's always easy to criticize something beforehand, but it's not something I do.

事先对它进行批评上很容易的事情，但这不是我的风格。

We have to make an accurate estimate beforehand.

我们需要事先作出准确的估计。

We need to make correct estimate beforehand.

我们需要事先作出准确的估计。

I wish I had told you about my father beforehand.

我希望我已预先把我父亲的情况告诉了你。

Why didn't you tell me beforehand?

你为什么不事先告诉我

You can come whenever you like, but you'd better tell me beforehand.

你什么时候来都行，不过最好先告诉我一声。

See, I have told you beforehand.

看哪，我预先告诉你们了。

B: OK. I'll call you beforehand.

好，我会提前给你打个电话。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。