hfc

美 [ˌeɪtʃɛf'si]英 [ˌeɪtʃef'si:]
  • abbr.(=high-frequency current)
  • n.含氢氟烃(全写为 hydrofluorocarbon,尤用于喷雾器中,对臭氧层无害)
  • 网络光纤同轴混合网(Hybrid Fiber Coax);光纤同轴电缆混合网;混合光纤同轴

hfchfc

hfc

n.

光纤同轴混合网(Hybrid Fiber Coax)

第二篇光纤同轴混合网(HFC)性能指标测量第四章光纤传输概述 第一节光纤传输的特点 第二节电视信号在光纤中的传输方式 第 …

光纤同轴电缆混合网

光纤同轴电缆混合网HFC),将光纤铺设至用户所在建筑物或小区,然后使用同轴电缆将数据信号接入用户房间。用户需要 …

混合光纤同轴

这个混合光纤同轴(HFC)网络对于有线网络来说具有战略上的重要性。光纤把模拟和数字电视从前端向终端发送。

混合光纤同轴电缆

什么是混合光纤同轴电缆(HFC)接入 04/06/10:35异步时分复用(ADTM),异步时分复用(ADTM)是什么意思 04/06/10:18 存储区域 …

氢氟碳化物(hydrofluorocarbons)

1.氢氟碳化物HFC)和全氟碳化物(PFC)类项目,为温室气体减排量转让收入的65%;2.氧化亚氮(N2O)类项目,为温室 …

氢氟烃(Hydro fluoro carbon)

氢氟烃(HFC)类替代品则需要合成的润滑油以便使互混的润滑油带回到压缩机.基本的新的润滑油是一系列粘度适当的聚酯(PO…

1
The number of new projects targeting HFC emissions is falling as developers run out of factories in which to install the cleaning equipment. 针对氢氟烃排放的新项目数量正在减少,因为可供安装清洁设备的工厂已所剩无几。
2
He said this was partly because the system was unbalanced by large investments in destroying HFC. 他表示,这在一定程度上是由于现行体系鼓励大量投资于消除氢氟烃排放。
3
Until recently it appeared that, despite the large amounts of money changing hands, HFC-23 emissions had been steadily increasing. 到目前为止,看上去虽然有大量资金正在转手,但是HFC-23排放量一直在稳步上升。
4
Since the executive board received that submission in July, eight HFC projects have been placed under review. 自从董事会七月份收到递交书以来,8项HFC项目受到审查。
5
Chemical plants that reduce the amount of polluting HFC gases they release into the atmosphere receive "carbon credits" in return. 化工厂减少向大气排放污染性的氢氟烃(HFC)气体,可获得“碳排放信用”(carboncredits)。
6
But chemical factories producing the HFC-23 gas can reduce their emissions using a simple piece of equipment called a scrubber. 但是,产生HFC-23气体的化工厂,可以使用一种名为“洗涤塔”的简单设备来减排。
7
This paper summarizes some understanding and experience of two-way HFC network design and transmission system debugging. 文章对双向HFC网络的设计和调试总结了一些粗浅的认识和经验。
8
The object of this thesis is an automatic meter reading system based on HFC net, and the system is used to attain the automation. 该课题的研究内容为HFC自动抄表系统,通过此系统来达到抄表的自动化。
9
HFC is a one of the most prospect high speed broadband network of intellective district. 是智能小区高速宽带网络的一种最有前途的宽带接入网络之一。
10
The CATV network mostly composed of hybrid fiber coax network(HFC), which is one-way, needs to carry on a bidirectional change. 有线电视网大部分是由混合光纤同轴电缆网(HFC)组成的,是单向的,需要进行双向改造。
11
China has benefited most through projects that reduce industrial gases, particularly HFC, a byproduct of making refrigerants. 中国获益最丰的领域是工业气体减排项目,尤其是制冷剂副产品氢氟烃(HFC)。
12
The noise characteristics and the anti-interference techniques of the HFC-CATV upstream channel are studied in this thesis. 论文对HFC-CATV上行信道噪声特性和抗干扰技术进行了研究。
13
Finally research the HFC network uplink channel noise source, nature and uplink channel noise and interference solution. 最后探讨了HFC双向接入网设计,HFC网络上行通道噪声的来源、性质及上行通道噪声和干扰的解决方法。
14
About 60 per cent of "certified emissions reductions" issued under the Kyoto protocol are estimated to be from HFC reduction projects. 在根据《京都议定书》发放的“核证减排量”中,估计约有60%来自氢氟烃减排项目。
15
The Head-end modulator is the key equipment for data transmission applied in HFC network. 前端调制器是HFC网络实现数据传输的关键设备。
16
Forum on Implementation of "Connection Engineering for Tow-way HFC Cable Distribution Network" “双向HFC电缆分配网接头工程”实战论坛
17
Hydraulic fluid power. Fluids. Measurement of filtrability of HFC and HFD class fire resistant fluids. 液压流体动力。流体.HFC和HFD类防火流体的可过滤性测量。
18
This article carries out preparatory work for the HFC bidirectional network. 本文主要是针对广电网络的进一步双向网改造进行前期的准备工作。
19
This paper introduces structure, character, main design and method of adjustment of CATV two-way HFC network. 系统介绍有线电视双向HFC网络的结构、特点、设计要点与调整方法。
20
But some carbon specialists are uneasy that the use of credits generated by HFC reductions is distorting the market. 但一些碳排放专家担心,利用氢氟烃气体减排所产生信用的做法,造成了市场的扭曲。
21
At last, this paper put forward the advice to establish national security standard of HFC network. 提出制订我国HFC网络数据传输安全标准的建议。
22
The HFC network management system software has devoted into market use and has been widely accepted. 这些成果已用于实际,开发出的HFC接入网管理系统投入市场使用后,受到用户的欢迎。
23
Cheap HFC-23 credits are a disincentive to investing in low-carbon electricity plants. 廉价的HFC-23额度妨碍了对于低碳发电厂的投资。
24
The retailer will replace the most harmful HFC gases that are used in 65 of its fridges by 2014. M&S将会在2014年前替换现用冰箱中的65台所使用的危害最大的HFC气体。
25
Factories have found that their damaging by-product, HFC-23, can be more valuable than their main output. 工厂发现他们的有害副产品HFC-23还比主要产品更值钱。
26
Greenhouse gas emissions from mobile air conditioning account for approximately 40 per cent of all annual US HFC emissions. 移动空调排放的温室气体大约占美国年氢氯氟化碳排放总量的40%。
27
In chapter two, it is about the character, advantage and problems about the two-way connection of HFC. 第二章主要介绍我国HFC网的技术特点、优势及在双向接入中存在的问题。
28
The most potent greenhouse gas is HFC-23, a by-product of HCFC-22, a chemical used in, among other things, fridges. 温室效应最强的其他十三氟甲烷(HFC-23),是用于冰箱制冷的化学物质HCFC-22的副产品。
29
The very cheapness of cutting emissions of HFC-23 makes the trade controversial. 减排HFC-23非常廉价,使得这个交易备受争议。
30
But there is little incentive for approved incineration schemes to reduce the amount of HFC-23 that they produce. 但是对于批准焚化方案以减少HFC-23的产生数量,得到的鼓励并不多。