hft

HFT may not carry risks to the financial system but no one knows for sure .

高频交易或许不会给金融体系带来风险，但对此没人敢打保票。

They should know who is using HFT and to what standards they are held .

他们理应知道是谁在使用高频交易，以及有何标准。

The results are as follows : Exogenous hormones enhance HFT gene expression .

结果表明外源激素促进了该基因的表达。

A meshing engagement theory for Hypoid and its application in HFT

准双曲面齿轮啮合原理及其在刀倾半展成加工中的应用

Another popular HFT strategy is to collect rebates that exchanges offer to liquidity providers .

另一种流行的高频交易策略是赚取做市的差价与交易所的回扣。

The one major change for HFT firms is that they have to register as brokers with the SEC .

高频交易面临的一个重大变化就是，它们必须通过注册成为SEC麾下的经纪商。

Now , however , cheaper technology , plus the disaggregation of traditional exchanges , means HFT is exploding .

不过眼下，更为廉价的技术，加上传统交易所的瓦解，意味着高频交易正在泛滥。

HFT is high-volume trading used by banks ' proprietary traders and a new breed of electronic trading outfits .

高频交易是银行自营交易员和新一代电子交易设备采用的大额交易。

Generation of HFT Hypoid Pinion Fillet Surfaces and the Test for Undercutting and Interference with Gear Top

HFT准双曲面齿轮的齿根过渡曲面和干涉、根切检验

HFT firms have long made the argument that they are basically market making firms , helping others , albeit indirectly , trade .

长期以来，高频交易公司一直都声称自己只是做市商，帮助他人（间接地）开展交易。

The effects of HFT , which perhaps accounts for 70 per cent of US trading volumes , are ill-understood .

高频交易可能占到全美交易量的70%，但人们对它的效果存在误解。

Moves by the securities and Exchange Commission to review flash orders are welcome , as would be a proper look at HFT .

美国证券交易委员会（sec）审查闪电指令的举措受人欢迎，对高频交易的仔细审视也会如此。

White also noted that the SEC is looking at whether exchanges should be giving trading data to some HFT firms faster than everyone else .

怀特还提到，SEC将调查交易所是否应该将交易数据提前透漏给高频交易公司。

Limits on speed or quantity of trades would certainly not harm the financial system , as HFT exploits rather than eradicates market inefficiencies .

对交易速度或交易数量设限，肯定不会损害金融体系，因为高频交易是在利用市场低效渔利，而不是在根除市场低效。

HFT may account for half of all equity trading ( and much the same proportion of revenues ) in New York and a quarter in London .

在纽约，高频交易可能占到全部证券交易的一半（交易收入方面的占比也大致相同），在伦敦则占到四分之一。

Traders say it takes 300 milliseconds for a human to place then cancel an order . For an HFT model , it takes less than one millisecond .

交易员们称，人工下单而后撤单要耗时300毫秒，而高频交易模型只需不到1毫秒。

So , while the SEC will get to monitor HFT a little more closely , its moves will also make HFT a little more legit .

因此，尽管此举能让SEC更为密切地监控高频交易公司，但是它也会让这些公司的举动稍微具有一些合法性。

HFT says it terminated the partnership because it has further improved its research of overseas listed " China-concept " companies and strengthened individual and team competence .

海富通表示，之所以终止合作关系，是因为自己进一步完善了对境外上市“中国概念”类公司的研究，加强了公司人员与团队的能力。

White said the SEC is looking into whether exchanges allow HFT firms to place their buy and sell orders in ways that give them an advantage over other traders .

怀特说，SEC将调查高频交易公司是否获得交易所的允许，借助比其他交易商更为有利的方式来提交买卖订单。

But if HFT needs curbing , that can also be done more directly – by requiring bids and offers to stand for a minimum length of time , for example .

但如果需要对高频交易进行限制的话，同样可以用更直接的方式&比如要求买卖双方的报价必须维持一个最低的时间段。

The SEC is also set to examine " dark pools " , electronic trading venues that do not publicly display quotes , and high frequency trading ( HFT ) .

证交会还将审查“资金暗池”（darkpools，即不公开显示报价的电子交易）和高频交易（hft）。

The immediate problem for all high-frequency traders in equity markets , where HFT accounts for over half of volumes in the US , is that trading volumes have slumped .

股市高频交易商眼下面临的问题是成交量大幅下滑，在美国，高频交易占成交量的一半以上。

The chief executive of one US-based high-frequency company , who declined to be identified , said : The environment right now with low volumes and relatively low volatility is relatively challenging for HFT .

一位不愿透露姓名的美国高频交易公司首席执行官表示：当前的成交量和波动性都相对较低，这种环境对高频交易构成了一定挑战。

By using the void pitch cone method , the hypoid gears of high speed ratio ( tooth number ratio : 3 / 37and 4 / 37 ) machined by HFT method were designed .

利用准双曲面齿轮虚节锥设计方法，设计出两种可采用HFT切齿法加工的大速比准双曲面齿轮副（齿数比分别为3/37和4/37）；

The results suggest that IL-2 receptors may have an expression on the HFT surface , and the proliferation of the HFT in vitro in response to IL-2 was detected by 3H-thymidine incorporation .

这些提示，在HFT上表达有IL-2受体。

A deeper problem is that many HFT strategies rely on having the most up-to-date technology able to carry out sophisticated arbitrage-style trades between asset classes to ensure companies are able to exploit opportunities before rivals .

一个更深层次的问题是，许多高频交易策略依赖的是拥有最新技术，以便能够在各资产类别之间进行复杂的套利式交易，确保公司能抢在竞争对手之前抓住机会。

Most controversially of all he argues that there need to be strong regulatory incentives for HFT ( and others ) to execute large orders , at firm prices and not exit when a crisis hits .

他所有的观点中，最具争议的一条是，必须建立强大监管激励机制，让高频交易员（及其他交易员）以约定价格执行大宗指令，并且在危机爆发时，不得退出。

The system can perform the computations such as blank dimensions , cutting and grinding settings , tooth contact analysis and under cut check of SGM , SFM , SGT , SFT , HGM , HFM , HGT , HFT cutting methods .

该系统可完成SGM、SFM、SGT、SFT、HGM、HFM、HGT、HFT切齿法的齿坯几何参数、切齿调整参数、轮齿接触分析、磨齿调整参数和根切检验等计算。