查询词典 valves

These self-priming pumps accommodate flow rates from 0.1 microliter to 350 gpm and are extremely durable, withstanding pressures up to 232 psi. There are no internal universal joints, valves, dead corners or glands to impede flow and these pumps are reversible for back flushing lines.

这些可自我启动的泵可用流是从0.1microliter到350gpm，非常持久耐用，可承受的压力可高达232psi，没有内在的万向街头，阀、死角和流通控制管，这些泵还可以逆转。

Dogs were selected as experimental subjects. Using micrurgy to destroy the valves in both sides of common iliac veins, external iliac veins, femoral veins and popliteal veins, establishing theanimal model of refluxing.

取杂交犬6条，全身肝素化，采用显微操作方法破坏每条犬的双侧髂总静脉、髂外静脉、股静脉和膕静脉内的生理瓣膜，构建下肢返流性疾病的动物模型。

For cylinders equipped with residual pressure valves, one evacuation under vacuum at 150 millibar is sufficient if the pressure is positive.

对于装有剩余压力阀门的气瓶，如果瓶内剩余压力是正压，把它抽真空到150 mbar 以下就可以了；要么就全面分析各个容器的残留气体。

This is not the first time the Ministry of Finance of the Social Security Fund to open a duty-free valves.

这不是第一次对社会保障基金财政部打开一个免税阀。

Should a standing column well design be misapplied, leaving out critical shut-off valves for example, the result could be an extreme loss in efficiency and thereby cause operational cost to be higher than anticipated.

如果一个常设栏目和设计被误用，留下了关键的关闭阀门，例如，结果可能是一个极端的效率损失，从而导致运营成本比预期高。

Mostly , the aortic and mistral valves are most often affected .

大部分，主动脉和帆板阀是最常见的影响。

LTD. Analysis of invalidation of the two MOOG valves was carried out with the help of advanced apparatus and profound expertise in this area at Fudan University. Our research reveals that poor quality of the valve surface is the root cause for invalidation. A detailed description of the method used in analyzing the invalidation of electro hydraulic servo valve is presented in this article. This research demonstrates that academic institutes can play a significant role to solve engineering problems by leveraging their existing resources.

我们利用复旦大学先进的表征仪器和工具以及积累的大量失效分析案例的丰富经验，对二个失效的MOOG阀的阀体进行解剖分析，判明了失效的真正起因不是液压油质量问题，而是阀滑表面质量存在问题，论文详细论述了我们采用的表征分析方法从宏观上、微观上对电液伺服阀阀的失效行为进行了全面分析的过程，是科研教学机构利用自身资源解决实际问题的一次有效的实践，具有较强的科学意义。

Our established clients cover the industry such as motor, automobile, motorcycle, tractor, valves, hydraulic equipment, pump, industrial fan, mechanical machinery, electrical motor, ship, mining and engineering machinery.

我公司已有的客户群有发动机、汽车、摩托车、拖拉机、阀门、液压件、水泵、风机、机床、电机、压缩机、轮船、矿山机械、工程机械等行业。

objective to evaluate the effect of modified ultrafiltration on pulmonary function after cardiac valve replacement.methods 46 patients who underwent mitral valves replacement were randomly divided into muf group(n=24) and control group(n=22) without muf.

目的 观察改良超滤对心脏瓣膜置换术患者肺功能的影响。

Methods Sixty-seven cases of adult patients undergoing valves replacement were randomized into modified ultrafiltration group (n=33) and control group (n=34). Blood gas parameter such as PO2, PCO2 were measured at pre-cardiopulmonary bypass, end CPB, and post MUF (or 20 min post CPB in control group). Ventilatory support time, usage time and amount of vasoactive drug and ejection fraction of left ventricular were also measured in the early period of operation.

67例成人心脏瓣膜置换术患者随机分为MUF组(n=33)和无超滤对照组(n=34)，动态观察体外循环(cardiopulmonary bypass， CPB)前、CPB停机时及MUF结束时（对照组在CPB停机20min）血气氧分压及二氧化碳分压、术后呼吸机辅助呼吸时间、血管活性药物用量及使用时间、心脏射血分数等心肺功能指标。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。