
*********
A crystalline compound, C18H 18, derived from pine tar, fossil resins, and tar oils.
一種結晶化合物,C18 H 18,從由*********、化石樹脂及焦油中提取。
Pine Tar, Palmer whispered sharply through the comm, get your narrow ass up here-we're leaving. Over.
“松油,”帕爾默突然在通訊頻道裡低聲說,“趕緊給我過來——我們要走了。完畢。”
To the north, stairs are contained in a thin wooden box stained black with a traditional Finnish pine tar coating.
北邊,樓梯建造在一個木質房間内,房間刷着黑色的傳統芬蘭松油。
Other products: 420 reclaimed activator, T501 antioxidant, refined 420 activator, coal tar, pine tar, dipentene, white factice and black factice.
本廠其它産品有:420再生活化劑、T501抗氧劑、精制420活化劑、*********、松焦油、*********、白油膏、黑油膏等。
The old pine dresser had been lovingly restored but they spoiled the ship for ah'porth of tar by fitting it with cheap plastic handles.
這隻老式的松木梳妝台已被整修一新,但裝上這些不值錢的塑料拉手後,它似乎顯得不倫不類,真是因小失大。
松焦油(pine tar)是一種通過幹餾松樹木材獲得的深色粘稠液體,主要成分包括松香酸、萜烯類化合物及酚類物質。該物質在曆史上長期應用于多個領域:北歐傳統建築中用于木制結構的防水防腐(《木材防腐技術曆史》,斯德哥爾摩大學檔案館);19世紀航海業作為船體接縫密封材料(《航海材料發展史》,海事博物館出版物)。
現代應用場景包括:
其化學特性表現為pH值3.5-4.5的弱酸性,粘度隨溫度變化顯著,20℃時動力粘度約1200-1500 mPa·s(《天然樹脂物理特性》,化學工業出版社)。
pine tar 是一個由“pine”(松樹)和“tar”(焦油)組合而成的合成詞,指從松木中通過破壞性蒸餾(高溫分解)得到的一種深色粘稠物質,具有獨特的氣味和多種用途。以下是詳細解釋:
總結來看,pine tar 是一種多功能天然産物,應用跨越醫藥、工業和傳統領域。具體用途需結合上下文判斷,例如藥物中需注意濃度和配方。
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