查询词典 prevent from

A product made from sodium citrate, obtained mainly from citrus; it is usually used in the food industry to prevent darkening of cut fruits and vegetables.

一个产品从柠檬酸钠，获得主要来自柑桔；它通常是用于食品工业，以防止昏暗的减少水果和蔬菜。

A shield attached to the shaft may be provided above the standpipe to prevent fluid from entering the standpipe from above.

在竖管上方可设有固定在轴上的护罩，以防止流体从上方进入竖管。

Stop sb. from doing sth.和prevent sb. from doing sth.

阻止某人做某事 nQP汕尾全程教育网

From the previous experimental results, we can know the NafionTM mix PR structure can maintain a constant voltage for the sensing layer of REFET and prevent it from the disturbance of ions.

从过去的实验结果可知道，NafionTM混合Polymer的结构具有使REFET的感测层维持在一个固定的电位且保护它不受离子的干扰的效果。

According to the request of adopting advanced technology, the main designing has such contents as below:⑴ Designing the two-fluid nozzle that is based on the theory of air-atomize spraying.⑵ Designing and choosing the type of the axial fan that is used to supply assisted airflow to waft droplets that comes from nozzle.⑶ Designing the swaying outfit that can rotate the spray assembly at a speed and inside a angle in order to satisfy the spray request of different crops, different planting states and improve the uniformity of distribution, the deposition of droplet. Here, we select TYV type reduction gear motor to adjust the swaying speed and use course switch to adjust the swaying angle.⑷ Designing the lift outfit that can adjust the height of the spray assembly to satisfy the request of the crops of different tallness, different spraying range. Here, we select cylinder as the main component that can be used as kickstand and controlled easily.⑸ Designing the switch of the power supply that is put out of the greenhouse in order to prevent worker from poisoning. After the mist sprayer being made, the experiment is made to test the function of the greenhouse mist sprayer fully.

根据采用先进施药技术的要求，本研究的设计内容主要有：⑴采用气液两相流喷雾技术，基于气力雾化原理，设计双流体喷头；⑵采用辅助气流输送雾滴，气流源为风机，对风机进行设计、选型；⑶为满足不同作物、不同栽培情况及提高雾滴分布均匀性、沉积性的施药要求，设计能带动喷射部件在一定角度内、以一定转速的旋转摇摆机构，本研究选用调速电机调节其摇摆速度，并利用反向行程开关调节其摇摆角度；⑷为满足不同高度作物、不同射程的施药要求，设计能调节喷射部件高度的升降机构，这里选用气缸为主要构件，既可以起到整机支架的作用，又可方便进行升降、固定控制；⑸设计行程开关的控制电路以及整机的控制系统。

Swellings from tonsillitis can be so severe they block the airways and prevent a person from breathing.

肿胀从扁桃体炎可以如此严重，他们阻止航空公司和防止一个人从呼吸。

My money will buy my children German lessons in primary school, but it will also deny them a tuck shop, prevent them from eating chips more than once a week, force them to get up on a Saturday morning for compulsory games and forbid them from chewing gum or using a mobile phone in school.

举个例子，我愿意花钱让我的孩子在小学里学习德语课程，但不愿他们去小食品店，要求他们在每星期内吃碎裂的次数不能超过一次，要求他们周六早起去参加强制性比赛，而且禁止他们在学校吃口香糖或使用手机。

The primary technical issues with streaming were:· having enough CPU power and bus bandwidth to support the required data rates · creating low-latency interrupt paths in the OS to prevent buffer underrun However, computer networks were still limited, and media was usually delivered over non-streaming channels, such as download of a digital file from a remote web server that was then saved to a local drive on the end users computer or as a digital file stored and played back from CD-ROMs.

与流主要的技术问题是：·有足够的 CPU 电源及巴士的带宽来支持创建低滞后时间的所需的数据率·中断 OS 为防止缓冲区不足中的路径但，计算机网络仍然有限，和媒体通常送非流信道，该等作为数字从远程 Web 服务器的最终用户计算机上的本地驱动器，然后保存文件的下载或作为一种数字文件存储和播放从 CD-ROM 回来。

The results show that for the single-track shield tunnel in actual projects,the longitudinal ventilation velocity of 2.6~2.9 m/s can effectively prevent smoke from counter flow at a heat release rate of 10 MW;when the tunnel sector on fire with a longitudinal velocity of 2.9 m/s and the unfired tunnel sector with the velocity of 1~1.5 m/s from both ends,there is an air flow with the velocity of 6 m/s ...

模拟分析得出，对于地铁实际工程中的单线盾构圆形隧道，在10 MW火灾强度下，着火区间隧道内2.6~2.9 m/s左右的纵向风速可以有效阻止烟气发生逆流；在着火区间隧道2.9 m/s的纵向风速下，未着火区间隧道两端对送送风速度为1~1.5 m/s时，联络通道内有风速为6 m/s左右的气流流向着火区间隧道，可有效抑制烟气通过联络通道向未着火区间隧道蔓延，保证人员的安全疏散。

Shandong Shengli Bioengineering Co., Ltd., Jining 272037, Shandong, China Abstract: The cause of infection in the process of avermectin production was studied from infected time, scope and bacterial type. The test method to check the infection caused by other bacteria was also raised. The ways to prevent infection was ascertained from preparation of microbial strain, air purification, medium disinfection, ductwork deployment and systematic dead angle cleaning. Meanwhile, adjustment measure was summarized in different infected period such as microbial strain, seed pot and yeastiness.

山东胜利生物工程有限公司，山东济宁 272073 摘要：从染菌的时间、类型、范围三方面探讨了阿维菌素发酵染菌的原因，提出了发酵过程中杂菌的检查方法，分别从菌种制备、空气净化、培养基灭菌、管路配置、系统死角清理等方面明确了防止发酵染菌的措施，得出了斜面菌种、种子罐、发酵罐不同时期染菌后的补救措施。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失