In the past, a 0.13% water solution (1:750) of Zephiran Chloride (benzalkonium chloride solution, NF) was used successfully.
在过去，曾经成功地使用过氯化苄基.二甲基.烷基铵（杀藻胺，NF）的0.13的水溶液(1:750)。
4NF
英语例句库
An alternate procedure is to soak the affected areas in an iced 0.13% water solution (1:750) of Zephiran chloride (benzalkonium chloride solution, NF).
一个替代程序是用氯化苄基.二甲基.烷基铵（杀藻胺，NF）的0.13的冰水溶液(1:750)来浸泡患处。
The mechanism about gloss effect of sheep shearling and the action of lustre agent was studied.And a low toxicity lustre agent NF was developed.
本文探讨了羊剪绒产品形成光泽和烫光剂在烫光进程中的作用机理。据此研究开发了一种低毒的烫光剂NF。
原声例句
中级英语短文
Meanwhile, some NF treatments have entered clinical trials in China.
与此同时，一些神经纤维瘤病疗法已经在中国进入临床试验。
BuzzFeedViolet
Is this a NF--FIFA? Is that LeBron Jones?
这是NF--FIFA吗？那是勒布朗琼斯吗？
中级英语短文
Their plight was featured in a documentary released by Bubble Home, the country's only nonprofit organization for NF patients, to mark Neurofibromatosis Awareness Day on May 17.
他们的困境出现在该国唯一的神经纤维瘤患者非盈利性组织“泡泡家园”发布的纪录片中，以纪念 5 月 17 日的世界神经纤维瘤病关爱日。
中级英语短文
However, many patients and their families face an uphill battle, as NF is yet to be officially recognized as a rare disease in China or included in the country's list of rare diseases.
然而，许多患者及其家人面临着一场艰苦的战斗，因为神经纤维瘤病在中国尚未被正式认定为罕见病或被列入国家罕见病名单。
中级英语短文
The two brothers from the southwestern Sichuan province live with a little-known disease called neurofibromatosis that is commonly abbreviated as NF — a set of genetic disorders that cause tumors to grow on nerves in the brain and throughout the body.
这对来自四川省西南部的兄弟患有一种鲜为人知的疾病，叫做神经纤维瘤病，通常缩写为 NF，这是一系列遗传疾病，会导致肿瘤在大脑和全身的神经上生长。
中文百科
第四范式 Fourth normal form
（重定向自4NF）
第四范式（4NF，大陆译作「第四范式」、**及香港译作「第四范式」）是数据库范式中所使用的一种正规形式，是BC范式之后的另一层次的规范化。第二范式、第三范式、BC范式关注于属性集合之间的函数依赖；而第四范式关注更一般形式称作多值依赖。
Ronald Fagin于1977年提出。 数据库的一个表遵从第四范式，当且仅当对于任意一个非平凡的多值依赖X 
Y, X是一个超键。
英语百科
Fourth normal form 第四正规化
（重定向自4NF）
Fourth normal form (4NF) is a normal form used in database normalization. Introduced by Ronald Fagin in 1977, 4NF is the next level of normalization after Boyce–Codd normal form (BCNF). Whereas the second, third, and Boyce–Codd normal forms are concerned with functional dependencies, 4NF is concerned with a more general type of dependency known as a multivalued dependency. A Table is in 4NF if and only if, for every one of its non-trivial multivalued dependencies X 
Y, X is a superkey—that is, X is either a candidate key or a superset thereof.
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