查询词典 Low Mass

Cavitation erosion is related to bubbles.Bubbles pop out from drilling fluid in vacuum conditiun and form air mass against cyclinder well.For low resistance to pressure,air mass happen explosion when compressed,making cyclinder wall cavitated.

气蚀发生的条件与气泡密切相关，气泡在真空时从钻井液中溢出形成气团，并紧靠缸壁；气团在压缩时因承压能力低而产生爆炸，从而引起缸壁产生气蚀作用。

To produce super low carbon steel which final carbon content is lower than or equal to 13×10~(-6),factors which effect decarburization were analyzed thermodynamically and kinetically,and measures were taken to further reduce the final carbon content of IF steel ,preparing for mass production of super low carbon steel were proposed.

本文简单介绍了宝钢股份宝钢分公司炼钢厂为生产成品碳≤13×10~(-6)的极低碳 IF 钢，分析了 IF 钢脱碳的热力学和动力学条件，阐述了进一步降低成品碳采取的对策措施和达到的效果，为大批量生产极低碳钢提供指导。

Inadequate bone mass accrual in childhood may result in low bone mass and/or osteoporosis in later life.

儿童期是骨矿物质累积的重要时期；在此阶段若骨量累积不足可能是造成日后低骨量和发生骨质疏松症的危险因子之一。

In every group, rabbits were subdivided into experimental and control subgroups. 2 Rabbits were bullets injected followed by continuous injected with 13C labeled leucine, glucose, and lactic acid; 3 Blood were drewed before and 150, 160, 170, and 180 min after the initiation of isotopes injection for material analysis; 4 Exhale gas were collected every 5 min in the first 30 min followed by every 30 min there after for material analysis; 5 After centrifuge in low temp the supernatant of the blood samples were collected and went through axon and anon exchange column treatment; 6 Treated blood sample was used for 13C labeled leucine, glucose lactic acid examination through mass spectrograph; 7 The exhale gas was collected for 13CO2 exam through gas-phase mass spectrograph; 8 CO2 total production rate (V13CO2), body various substances production, oxidation speed, and substances metabolic percentage all can be calculated through equations provided by references below; 9 Data was processed through student t test.

分亮氨酸、葡萄糖和乳酸三组各取健康新西兰兔16只，每组再分为高代谢脓毒症组和对照组两部分，建模方法同第一部分；2）三组分别先静脉弹丸式推注再持续灌注13C标记的亮氨酸、葡萄糖和乳酸；3）灌注前抽取动脉血作为背景值，灌注达150，160，170和180min分别抽取动脉血2ml用于质谱分析；4）实验开始后前30min中每5min收集呼出气一次，随后每30min收集呼出气一次，用于气相质谱分析；5）血样经过低温离心取上清液，过阳离子及阴离子交换树脂，再经衍生化处理；6）处理过的血样进入气相色谱－质谱仪，测量其13C标记的亮氨酸、葡萄糖和乳酸丰度；7）实验兔的呼出气通过13CO2气相质谱分析仪测定其中的13CO2丰度（E13CO2）；8）利用文献提供的公式算出CO2总生成率（V13CO2）以及机体各物质的通量、氧化速率以及物质代谢百分比等；9）数据分析处理采用t检验。

3Ensemble character of structural planes as follows: In left dam abutment, meta basalt schistosity is main, and the structure is clockwise. Low dip angle jointing didnt develop in rock mass; In right dam abutment, rupture and jointing structural plane is main, and the structure is reversed. The structure was of obvious macroscopical slaty character. Constructional soft rock mass belt with some thickness developed.

3通过对上述结构面的分析，得出其总体特征为：左坝肩以变玄武岩片理为主体，呈顺向结构，岩体内缓倾角节理极不发育；右坝肩主要为断裂及节理型结构面，呈反向结构，且具有明显的宏观板状结构特征，并发育有一定厚度的构造软岩带。

Therefore, the theory of low-pressure gas mass transfer in capillaries provides a new method for describing the mass transfer process in microwave freeze drying of capillaceous porousmaterial.

因此，毛细管低压气体输运理论为描述毛细多孔介质微波冷冻干燥中传质过程提供了一种新的方法。

Abstract］ objective to discuss radiological findings of parosteal osteosarcoma on emphasis combined with clinical pathology and literature.methods 4 cases of parosteal osteosarcoma proved by operation and pathology were analyzed retrospectively.results female was 3 cases,male was 1 case,average age was 30.5 years old,these tumors were arised on posterior border of distal femur and popliteal cavity,presented as lobular dense ossified mass,defined lesion.one case had villose margin.a thin narrow lucent zone separated the mass from the cortex at two cases.one case underwent angiography,there was no malignant feature.conclusion parosteal osteosarcoma may be divided into low-grade type and high-grade type.radiological manifestations of early stage possess character,early diagnosis conduces to establish rational treating plan and evaluate prognosis.

目的 结合临床病理学特征和文献资料，重点讨论皮质旁骨肉瘤的x线特征。方法收集经手术、病理证实的皮质旁骨肉瘤病例4例，对其进行回顾性分析。结果 4例患者女3例，男1例，平均年龄30.5岁，肿瘤均发生于股骨远端后侧和腘窝处，表现为分叶状致密骨化肿块，边界清晰，其中1例边缘呈绒毛状改变，2例有细窄透亮带与骨皮质相隔，1例行血管造影，未见血管池等恶性征象。结论皮质旁骨肉瘤分为低度恶性和高度恶性两种，早期影像学表现有特征性，早期诊断有助于制订相应的治疗方案和评估预后。

The results showed that the low-molecular weight sodium polyacrylate from 2 000 to 4 000 were obtained when reaction temperature was 70 ℃,acrylic acid mass fraction was 20 %～30 %,the mass ratio of potassium persulphate to sodium hydrogen sulfite was 10∶1～14∶1,and reaction...

对合成的聚丙烯酸钠在陶瓷铁粉上进行应用试验，当聚丙烯酸钠加入量为0.3%~0.5%时，所得浆料粘度较小，有良好的分散效果。

Mass famines (except for the period of the Great Leap Forward) and pestilence were wiped out; medical services for the masses meant infant mortality rates and life expectancy advanced ahead of all other low income countries; mass education was provided for all, with many peasants even gaining access to university education; efforts at 'equalising' social relations in all spheres were undertaken; and the 'iron rice bowl' provided social security for all Chinese people.

彻底根除了瘟疫和大规模的饥荒；医疗服务，即对大多数人而言的婴儿死亡率和平均寿命，比其他所有低收入国家都领先；为所有人提供大众教育，很多农民甚至获得大学教育的机会；致力于各个阶层社会关系的&平等&；&铁饭碗&为所有人提供了社会保障。

This paper presents a low-cost embedded real-time platform based on DSP and its applications in Coriolis mass flow rate meter,and proposes a different method to calculate mass flow rate,and analyzes tasks scheduling by embedded real-time system at the same time.

本文讲述了一种低成本的基于DSP的实时嵌入式开发平台的体系构成及其在科里奥利质量流量计中的应用，提出流体质量流量的不同计算方法，同时分析了嵌入式实时系统对任务的调度。

No clear conclusions can be made about the predictie alidity of specific measures, they found, except for criteria for the underuse of drugs for cardioascular disease.

除了心血管病不合理用药标准外，对于特定评价方法的预测效度没有明确的结论。

The third and last is that almost all of them, being infinite in number, have been impostures, and by idle and crafty brains merely contrived and feigned after the event past.

第三、即最后一点是：几乎所有这些不胜枚举的预言都是欺人之谈，都是在事件过后由无聊而狡猾的脑筋推测与凭空捏造的。