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n. high frequency（高频）的简写

high frequency（高频）的简写

WordNet (r) 3.0 (2006) (WordNet)

Hf
n 1: a grey tetravalent metallic element that resembles
zirconium chemically and is found in zirconium minerals;
used in filaments for its ready emission of electrons [synonym:
{hafnium}, {Hf}, {atomic number 72}]
2: 3 to 30 megahertz [synonym: {high frequency}, {HF}]

The Collaborative International Dictionary of English v.0.48 (gcide)

Hydrofluoric \Hy`dro*flu*or"ic\, a. [Hydro-, 2 fluoric.]
(Chem.)
Pertaining to, or containing, hydrogen and fluorine;
fluohydric; as, hydrofluoric acid.
[1913 Webster]

{Hydrofluoric acid} (Chem.), a colorless, mobile, volatile
liquid, {HF}, very corrosive in its action, and having a
strong, pungent, suffocating odor. It is produced by the
action of sulphuric acid on fluorite, and is usually
collected as a solution in water. It attacks all
silicates, as glass or porcelain, is the agent employed in
etching glass, and is preserved only in vessels of
platinum, lead, caoutchouc, or gutta-percha.
[1913 Webster]

V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006) (vera)

Have Fun (slang, Usenet, IRC)

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单词	字典	翻译
Hf	查看　Hf　在百度字典中的解释	百度英翻中〔查看〕
Hf	查看　Hf　在Google字典中的解释	Google英翻中〔查看〕
Hf	查看　Hf　在Yahoo字典中的解释	Yahoo英翻中〔查看〕

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HFBoards - NHL Message Board and Forum for National Hockey League
HFboards is the largest ice hockey discussion forum, covering the NHL, College, Europe, and any other area of major hockey around the world Over 36 million posts and growing
Trade Rumors Free Agent Talk - HFBoards
Trade rumors, transactions, and free agent talk Rumors must use the RUMOR prefix in thread title Proposals must contain the PROPOSAL prefix in the thread title
OHL | HFBoards - NHL Message Board and Forum for National Hockey League
Due to unforeseen circumstances, all HF Pickem and Sportsbook games will be limited until further notice We apologize for the inconvenience Home Forums Other Leagues Canadian Junior Hockey 1 2 3 … 80 Next Next Filters
Edmonton Oilers - HFBoards
Due to unforeseen circumstances, all HF Pickem and Sportsbook games will be limited until further notice We apologize for the inconvenience Home Forums Western Conference Pacific Division
hf 元素有哪些特性？ - 知乎
）和氢气，剧烈放热算是4的补充，氟铪络离子（ [HfF6]2-）稳定性很差，遇到碱会生成氢氧化铪（Hf (OH)4）沉淀铪的化合物四氯化铪，纯净的是白色粉末，假如不纯，混有单质铪，会呈现灰色到棕色的外观。四氯化铪的化学性质：很容易水解，和四氯化钛非常像。
Montreal Canadiens | HFBoards - NHL Message Board and Forum for . . .
Sticky HF Habs: Out of Town Thread 2025-2026 season part 2 MarkovsKnee Feb 25, 2026 89 90 91 Replies 2K Views 41K 23 minutes ago Pompeius Magnus Sticky The ''What to do in Montreal'' Thread version 5 0 Lshap Mar 13, 2015 32 33 34 Replies 838 Views 146K Today at 8:41 AM That Habs Fan Sticky Prospect Info: 2025-26 Prospects Thread (CHL NCAA Euro
ROHS与HF本质区别？ - 知乎
请问ROHS与HF本质区别是什么,HF是包含了ROHS吗？（比如说电子产品符合HF，是不是意味着符合ROHS要求呢）
为什么沸点h2o＞hf＞nh3? - 知乎
3 形成氢键数越多的物质，熔沸点越高；形成的氢键强度越大，对应物质熔沸点越高。六、H2O、HF、NH3三者虽然都能够形成氢键，单个氢键：HF大于H2O，H2O大于NH3;但水中氢键数为2，HF为1；NH3中氢键数虽然较多，但键能相对前两个较弱。
Toronto Maple Leafs - HFBoards
If you are having issues logging in, we have found opening the log in page in a new tab window rather than using the pop out should resolve these issues We are working to get this resolved and thank you for patience Due to unforeseen circumstances, all HF Pickem and Sportsbook games will be limited until further notice We apologize for the inconvenience Home Forums Eastern Conference
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Sticky threads Sticky 2025-26 Senators Prospect Watch mianjo Sep 26, 2025 47 48 49 Replies 1K Views 35K Yesterday at 9:05 PM mianjo Sticky B-Sens Belleville Senators - 2025 26 Season mianjo Aug 21, 2025 63 64 65 Replies 2K Views 36K Monday at 11:09 PM mianjo Sticky OT: PWHL: Ottawa Charge Ghost of Jody Hull Jan 2, 2024 25 26 27 Replies 652 Views 15K Sunday at 8:46 PM mianjo Redblacks 2025

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