总裁捶胸顿足，称那是个错误的交易。The president beat his breast and called that deal a mistake.这笔交易看上去太诱人了，要是拒绝它简直是笑话。The deal seems so attractive it would be ridiculous to say no.“交易！”她鄙夷地说，“我厌恶一切交易。”"A deal!" she said contemptuously, "...
建立用色差法确定化学反应终点的分析方法,探索色度学在化学分析中的应用.A analytical method was developed for the termination of chemical reaction by chromatism.色标检测方法从原理上分为色度学方法和光度学方法两种.The principle for color scale detection divided into two kinds of colo...
硬水使壶生水垢.Hard water furs the kettle.与金属不同, 塑料不会生锈 、 生水垢或凹陷,实际上塑料使用寿命更长.Unlike metal, plastics never rust, scale , or pit - they virtually last forever.输水、注水管线: 清除水垢、沉积物.Water delivery and injection line: cleanup scale and...