Nitrogen-free filter paper
[化] 无氮滤纸
🧩 词语组成解析
free
[fri]
adj. 自由的;免费的;免税的;空闲的;
adv. 免费地;自由地，无拘束地;一帆风顺地;
vt. 免除;释放;使自由;解救;
filter
['fɪltɚ]
n. 滤波器;滤光器;滤色镜;[化] 过滤器;
vi. 过滤;透过;渗透;
vt. 过滤;滤除;
paper
['pepɚ]
n. 纸;文件;论文;文章;
vt.& vi. 贴纸;
vt. 包装，用纸覆盖;贴壁纸;提供纸张;[俚语] 提供免费入场券;
vi. 贴糊墙纸;发交通违章传票;
adj. 纸制的;似纸的;有名无实的;
🗣️ 情景例句
What do you often eat for supper?
你晚饭通常吃什么？
My watch is two minutes fast.
我的表快了两分钟。
that a series of deep soundings was obtained in the Atlantic and the first samples were collected by dredging the bottom.
才在大西洋测得一个个海水深度，同时通过挖掘海底，取得了研究海底的首批样品。