It's disbennifit to become protected film if change the velocity of flow frequently.

频繁改变水流速不利于在冷却器材料表面形成保护膜，而保护膜对于防腐蚀是至关重要。

He used to practise usury frequently.

他过去经常放高利贷。

We had to pause frequently for breath.

我们不得不经常喘口气。

Consonants are frequently assimilated to neighboring consonants.

辅音往往被其邻近辅音同化。

The star boozed frequently in his younger days.

该明星在年轻时经常酗酒。

Bill got the boot for frequently coming late.

比尔因经常迟到而被解雇。

They are frequently admonished for their failure to act quickly.

他们因行动迟缓而多次受到责备。

This type of coaxial cable is frequently referred to as Thicknet.

这种同轴常称为粗同轴(Thicknet)。

Now he must deal with Washington's gigantic and frequently doltish permanent establishment.

是现在他必须和华盛顿庞大有点愚蠢既有体制打交道了。

The train stopped frequently at lonely little stations,which resulted in a sleepless night.

火车不时在孤寂小站,这使我一夜难眠。

Bordure or Border - Frequently adopted as a "difference" between relatives bearing the same arms.

图案边界标志物-一般用以作为一种标示，区别那些大体相近纹章。

Young stems terete to frequently 4-angled or subalate, glabrous, puberulous, pubescent, or tomentose, often glabrescent.

嫩茎圆柱状到经常地四棱形或略似翼，无毛，被微柔毛，短柔毛，或被绒毛，通常后脱落。

Undescended testis is frequently accompanied with the anomalies of the spermatic cord,gubernaculum testis,processus vaginalis,and epididymis.

隐睾常伴有精索、睾丸引带、鞘状突、附睾等异常。

Brougher clashed frequently with Browder.

布鲁尔和布劳德经常发生冲突。

To access food sources or defend the territory,agonistic behavior,mostly in a form of ritualization,was frequently displayed.

为获得食物和保卫领域，黑颈鹤之间(或与灰鹤之间)常发生争斗，争斗主要形式是仪式化威胁。

The characteristic is looked that resembles stockily but actually insincere, frequently quarrels with the same table of Pakistan.

特点看似敦实却不厚道，经常和同桌巴基斯坦吵架。

Undercrossing tunnels are frequently constructed by the shield-driven method in metro projects.Shield tunneling affects the existing tunnel inevitably.

摘要在地铁工程中，常采用盾构法修建正交穿隧道，新隧道掘进不可避免地对既有隧道产生影响。

This neuronal loss is frequently accompanied with astrocytosis,gliosis and specific neuropathologic markers,such as Lewy body in Parkinson's disease.

这种神经元丢失通常伴有星形胶质细胞增生、神经胶质过多症以及特定神经病理标记,如帕金森病路易小体。

94. The betatron and synchrotron tunes are measured frequently during the period of the machine operation and machine studies.

在加速器运行和机器研究过程中,需要经常对束流振荡频率进行测量.

Klebsiella pneumoniae was the pathogen most frequently encountered.Seven of the ten patients had underlying disease, and hemoglobinopathy was frequently associated.

十人中有七人本就有其他疾病，尤其是血液疾病使他们易罹患肝脓疡。