打个折扣

I was discounted a tenner off my room service order which took 20 mins longer than announced and was 66% wrong (3 items but two incorrect -- wrong colour bread for the sarnies -- stale by the way -- and wrong drinks).

我的客房服务费用中打了10英镑的折扣，办手续比他们宣称的时间多了20分钟，并且错误率在66%（三个项目有两个弄错了---三明治面包颜色不对---顺便说一下，是霉变发绿的---饮料不对）。

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。