直接致癌物 的英文怎麼說

中文拼音 [zhíjiēzhìáiwù]
直接致癌物 英文
direct acting carcinogen
  • 直 : Ⅰ形容詞1 （成直線的; 硬挺的） straight; stiff 2 （跟地面垂直的; 從上到下的; 從前到后的） erect; v...
  • 接 : Ⅰ動詞1 （靠近;接觸） come into contact with; come close to 2 （連接; 使連接） connect; join; put ...
  • 致 : Ⅰ動詞1 （給與;向對方表示禮節、情意等） deliver; send; extend 2 （集中於某個方面） devote （one s ...
  • 癌 : 名詞[醫學] （惡性腫瘤） cancer; carcinoma
  • 物 : 名詞1 （東西） thing; matter; object 2 （指自己以外的人或與己相對的環境） other people; the outsi...
  • 直接 : direct; immediate
  • 致癌物 : cancer-producer
  1. In - soluble fibre helps solid wastes pass through the body more efficiently, and thereby reduces exposure of the intestines to toxic substances that can cause intestinal cancer. this kind of fibre also prevents or reduces the severity of constipation, hemorrhoids, and diverticulosis

    非水溶性食物纖維能加速使糞便排出體外，直接減少廢物在腸道停留時間，減低有害致癌物質在腸臟積聚，能預防腸道癌，避免便秘、痔瘡及憩室病的出現或惡化。
  2. In our laboratory, a unique mutation detection system using a shuttle vector plasmid has been established to demonstrate that a low concentration of mnng ( 0. 2 m ) can induce nontargeted mutation in mammalian cells : the mammalian cells were exposed to 0. 2m mnng for 2. 5h, then a shuttle plasmid pz189 carrying supf trna gene was transfected into cells after 24h culture. we found a 5 - fold higher mutation frequency of the plasmid replicated in pretreated cells than the spontaneous mutation frequency of the plasmid replicated in control cells. this kind of mutation did not occur immediately after mnng exposure

    我們實驗室曾用一特殊的突變檢測系統，直接證明dna損傷劑可在哺乳動物細胞誘發非定標性突變：首先用低濃度（ 0 . 2 m ）的短壽烷化劑mnng （半壽期為1 . 1hr ）處理細胞2 . 5h后，繼續培養24h ，將重組有用作突變檢測的靶基因supftrna基因的穿梭質粒pz189轉入細胞復制，發現在未受致癌物直接攻擊的穿梭質粒中有較自發突變率高5倍以上的靶基因突變。
  3. Chemical carcinogens can cause modifications or damages on dna directly. if these damages are not repaired properly, they result in mutagenesis and carcinogenesis

    化學致癌物能直接在dna上造成修飾和損傷：如果沒有被正確修復，這些損傷將導致突變的形成。
  4. If use avirulent or small poisonous matter to replace toxic carcinogenic substance ; if cannot avoid to use or produce the material that has the effect that cause cancer, should limit the content of poisonous material in raw material, utmost reduces carcinogen to be discharged to the middle of producing an environment, strengthen ventilated, reduce dust to discharge ; reform technological process, use as far as possible automation, mechanization and sealed change producer style, reduce carcinogen and human body to be contacted directly

    如採用無毒或低毒物質替代有毒致癌物質；如無法避免使用或生產有致癌作用的物質，應限制原材料中毒物質的含量，最大限度減少致癌物質向生產環境中排放，加強通風，減少粉塵排放；改革工藝流程，盡可能採用自動化、機械化和密封化生產方式，減少致癌物質與人體直接接觸。
分享友人
分享到 Line

分享到臉書