石蕊试纸

Test: turns blue litmus paper red.

做个试验吧，能把蓝色的石蕊试纸变成红色。

Litmus paper turns red in the presence of an acid.

石蕊试纸遇到酸就变红。

Strong bases that turn litmus paper blue, they react with acids to yield salts, are caustic, and in concentrated form corrode tissues.

碱是强碱性的，会使红石蕊试纸变蓝色；它们与酸作用成为中性盐；它们是苛性的，其浓缩物可腐蚀有机组织。

Litmus paper turns red on contact with an acid.

石蕊试纸遇酸度会变红。不适合

The following information shows the result of an experiment when pieces of blue litmus paper and red litmus paper are dipped into three liquids, X , Y and Z.

下列的资料显示蓝色和红色石蕊试纸浸入 X 、Y和 Z 三种液体时的试验结果。

Sourness is just another word for acidity, Suslick said, which any high school chemistry student can test for using litmus paper.

萨司利克说，酸味只是酸度的另一种表述方式，任何一间中学的化学学生都可以用石蕊试纸进行它的测量。

Strong bases that turn litmus paper blue, they react with acids to yield salt s, are caustic, and in concentrated form corrode tissues.

碱是强碱性的，会使红石蕊试纸变蓝色；它们与酸作用成为中性盐；它们是苛性的，其浓缩物可腐蚀有机组织。

NH4+ when heated with sodium hydroxide solution, a colorless gas is given out which can turn wet red litmus paper to blue.

铵盐和氢氧化钠溶液共热时会放出一种无色气体，它可把湿的红色石蕊试纸变蓝。

Every cloud, however, has a silver lining, for it was this strange side effect that gave a team of researchers at the Massachusetts Institute of Technology their crucial idea: stamp-sized patches, much like litmus paper, that change colour when exposed to the urine of people with traces of medicine in their systems.

然而，每一片乌云都有一线希望，因为正是这种奇怪的副作用启发了麻省理工大学的一个研究团队，让他们产生了一个重要的思想：类似邮票大小的一小块补丁，很像石蕊试纸，当人体内有药物成分时，试纸曝露在人的尿液里就会改变颜色。

The cervical secretion of 56 pregnant women diagnosed as PROM and 40 pregnant women without PROM were measured by rapid immune chromatography and litmus paper.

方法对临床确诊为胎膜早破孕妇56例及无胎膜早破孕妇40例分别采用快速免疫层析法和传统的石蕊试纸对其宫颈分泌物进行检测。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。