查询词典 litmus paper

In the form of a water solution or as litmus paper, it is the oldest and most-used indicator of whether a substance is an acid or a base.

它的水溶液，或者做成石蕊纸后，是最古老和最常用的指示剂，可以指示一种物质是酸还是碱。

Put one end of the litmus paper into the water.

将石蕊闭幕式纸的一端浸进水里。

If you are curious about the results of your wash, use ordinary litmus paper, it will tell you the rough pH level.

如果你怀疑水洗的成果，使用普通石蕊试纸测测PH值。

We can determine whether a solution contains acids by litmus paper.

6我们可以用石蕊试纸来决定某种溶液是否含有酸。

Table 2 shows the result of an investigation when litmus paper is dipped into three types of substances, W, X and Y.

表 2 显示石蕊试纸浸入 W、X和 Y 三种物质后的实验结果。

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。

Alkaline substances will change the colour of red litmus paper to blue and it taste bitter.

酸性物质具有极酸的味道，它把蓝色石蕊试纸变成红色；碱性物质具有极苦的味道，它会把红色石蕊试纸变成蓝色；中性物质不含酸性或碱性，它不会使蓝和红石蕊试纸改变颜色。

Litmus paper turns red on contact with an acid.

石蕊试纸遇酸度会变红。不适合

Means the parent directory, so this command means to execute "toolchain.sh," which is in the current directory.

代表父目录，所以这个命令就是执行当前目录下的"toolchain.sh"。

Yes,In fact,I'm on our city ream.

是的。事实上我是我们市队的。