
n. 滑石粉
I need some French chalk.
我需要一些滑石粉。
When used for a time, the lock may not be opened smoothly. Do not dip mechanical oil into the lock. Instead, slip some French chalk or pencil fines into it.
鎖具使用一段時間後,會出現開啟不順暢的現象,不要往鎖心内滴機油,将滑石粉或鉛筆心的細屑滑入鎖心内即可。
The invention provides a medicine treating tympanitis, which comprises 100g fresh eel blood, 10g earthworm dried powder, 5g musk dried powder, 2g toadfish dried powder and 50g French chalk.
本發明提出是一種治療中耳炎的藥物。由鮮鳝魚血100克、蚯蚓幹粉10克、麝香幹粉5克、蟾酥幹粉2克和滑石粉50克組成。
Of course permanency has been a problem for artists since the first prehistory artist scratched into a chalk wall in a French cave.
當然,對藝術家來說,保存永久的藝術形式是一個問題,比如說,史前藝術家以前在山洞的石灰牆上創造作品,但現在不會有人這麼做了。
n.|talcum powder;滑石粉
French chalk(滑石粉)是一種天然礦物粉末,主要成分為矽酸鎂水合物,化學式為$$ Mg_3Si4O{10}(OH)_2 $$。它在工業、手工藝和日常生活中廣泛應用,尤其以細膩的質地和低硬度著稱。
French chalk本質上是高純度滑石(talc)的别稱,因其質地類似于粉筆且最初在歐洲被廣泛使用而得名。其特點包括:
French chalk不同于普通粉筆(主要成分為碳酸鈣),其化學成分與物理性質更穩定。需注意,部分工業滑石粉可能含石棉雜質,但現代提純工藝已基本規避此風險(來源:礦物安全數據)。
以上内容綜合礦物學、工業應用及安全标準信息,确保科學性與實用性。
"French chalk" 是一個英語名詞,主要含義為滑石粉()。以下是詳細解釋:
如果需要進一步了解滑石粉的化學性質或具體應用場景,可參考化工或材料學專業資料。
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