限速

COX-2是合成前列腺素的限速酶。

COX-2 is a rate-limiting enzyme of prostaglandin synthesis .

酪氨酸羟化酶（TH）是多巴胺合成的限速酶，作为多巴胺的标记。

Tyrosine hydroxylase ( TH ) is the rate-limiting enzyme in the synthesis of dopamine , as a marker of dopamine .

据宣布，将有新的限速规定出台。

It was announced that new speed restrictions would be introduced .

他们正以两倍于法定限速的速度行驶。

They were travelling at a speed that was double the legal limit .

这条路上新的限速规定自6月1日起生效。

The new speed limit on this road becomes effective from 1 June .

必须严格执行限速规定。

The speed limit must be rigidly enforced .

在这些区域内，交通限速是20英里/小时。

Inside these zones , traffic speeds are restricted to 20 mph .

你必须遵守限速规定。

You 've got to keep to the speed limit

高速公路限速每小时55英里。

The speed limit on the freeway is 55mph .

限制车速容易，但强制司机遵守这些限速规定就难办多了。

Imposing speed restrictions is easy , but forcing motorists to observe them is trickier

喜欢把“追我啊”挂在嘴边的诺维尔承认在限速50英里的地段开到了83英里/小时，并请求地方治安官不要吊销他的驾驶证。

Norvelle , whose catchphrase is ' Chase Me ' , asked magistrates not to ban him after he admitted doing 83mph in a 50mph zone .

限速每小时四十英里，不要超过这个极限。

The speed limit is 40 miles an hour . Don 't exceed this maximum .

请一定不要超过新的限速。

Make sure you keep within the new lower speed limit .

我们不能超过限速。

We can 't exceed the speed limit .

最高限速必须严格遵守。

The speed limit must be strictly observed .

例如，我们中的大部分人都觉得年长的司机会开得比较慢，但令人惊讶的是，我们发现他们在时速30英里的区域很难保持稳定的车速，因此更有可能违反限速规定并面临罚款的风险。

" For example , most of us would expect older drivers always go slower than everyone else but surprisingly , we found that in 30mph zones they struggled to keep at a constant speed and so were more likely to break the speed limit and be at risk of getting fined ． "

我正按限速行驶！

I was doing exactly the speed limit !

"不,先生。我当时是按照限速行驶的——正好时速22英里！"

" No , sir . I was doing the speed limit — exactly twenty-two miles an hour ! "

“女士，”警官回答说，“你没有超速，但你应该知道，比限速开得慢也会对其他司机造成危险。”

" Ma'am , " the officer replied , you weren 't speeding , but you should know that driving slower than the speed limit can also be a danger to other drivers .

他/她会不停地提醒你与前车保持安全距离，查看你的车速是否在限速范围内，而且总能很快指出你的导航错误。

He / she constantly cautions you to keep a safe distance from the car in front of you , checks that you 're obeying the speed limit , and is always quick to point out your navigational errors . For example :

LED可变限速板、可变情报板的硬件技术

Hardware Techniques of LED Variable Speed Limiting Board and Variable Information One

高速公路RBF神经网络限速控制

RBF Neural Network Control for Speed Limitation on Freeway

RT-PCR扩增检测肺组织中PC合成限速酶磷酸胆碱二胞苷酰基转移酶（CCTα）mRNA含量；

MRNA content of phosphocholine cytidylyltransferase ( CCT ) in lung explants was investigated in RT-PCR ;

一氧化氮合酶（NOS）为产生NO的限速酶，与NO的各种生理功能密切相关。

The key enzyme which produces NO , is also associated with the physiological functions of NO.

血红素加氧酶（HO）在动物体内是血红素分解代谢过程中的限速酶。

Heme oxygenase ( HO ) has been regarded as a rate-limiting enzyme in heme degradation .

4.Asp对COX表达的影响：COX是前列腺素合成的限速酶。

Effect of aspirin on COX expression : The COX is a rate-limiting enzyme synthesizing prostaglandin .

临时限速服务器系统TSRS（TemporarySpeedRestrictionServer）是客运专线列车运行控制系统的重要设备之一。

Temporary Speed Restriction Server ( TSRS ) is one of the most important devices in train control system of Passenger Dedicated Lines .

COX是一种膜结合蛋白，是前列腺素生物合成的限速酶。

COX is a membrane conjugated protein and is the rate-limiting enzyme in the synthesis of prostaglandins .

然后针对液压电梯专用限速切断阀，通过fluent流场仿真软件和Matlab仿真软件的分析，建立了一套比较完整的设计计算的方法；

After that , a complete solution to design the pipe rupture valve of the hydraulic elevator with fluent and Matlab simulation software ;

血红素加氧酶（HemeOxygenase，HO）是血红素代谢的限速酶。

Heme oxygenase ( HO ) catalyzes the rate-limiting step in the degradation of heme .