钼的

In this paper,2,2-dimethylolbutyraldehyde was synthesized through the acetal reaction of formaldehyde and butyraldehyde,using phosphomolybstic acid as catalyst.

研究了磷钼酸对此缩醛反应的催化反应活性，以及催化剂的用量、反应物配比、反应时间等因素对反应产物收率的影响，确定了最佳催化条件。

The mechanism of the tribomate pairs＇ anti-abrasive wear（ Mo-alloy sprayed piston ring/P-B cylinder bore ） under certain amounts of quartz sand was studied by SRV subsection experimentation.

采用SRV试验机分段试验方法，对喷钼活塞环与磷硼气缸套组成的摩擦副，在石英砂磨粒条件下的抗磨粒磨损机制进行了研究。

According to the experimental data, it is indicated that molybdenum acts as the catalyst, which exists in a much mo...

我们曾用此法在不分离钨的条件下，测定了钨酸钠中微量的钼。

There will be a breakthrough in Mo、Au、Ag ore prospecting and a development in prospecting styles.

在该矿钼、金、银找矿方面有大的突破，再找矿类型上夜游大的发展。

By use of electrolytic pure iron ,the melts containing different content of heterogeneous nucleus were made in a Mo wire furnace.

采用电解纯铁通过高温钼丝炉制备含有不同数量异质核心的试样，用差热分析法分别测定了纯铁和高洁净钢试样在相同冷却速度下的过冷度。

Objective To explore the effect of mammography in the diagnosis of early breast cancer.

目的 探讨乳腺钼靶摄影对早期腺癌的早期诊断价值，提高腺癌的早期诊断率。

Objective: To discuss the significance of cluster micro-calcification in the diagnosis of breast cancer by mammography.

目的：探讨钼靶X线检查在以簇状微小钙化为唯一征象的乳腺癌诊断中的意义。

Objective: To discuss the significance of cluster microcalcification in the diagnosis of breast cancer by mammography.

目的：探讨钼靶X线检查在以簇状微小钙化为唯一征象的乳腺癌诊断中的意义。

Objective To explore the value of digital mammography in the diagnosis of breast cancer,enhance the diagnosis rate in breast cancer.

目的 探讨数字乳腺钼靶摄影对乳腺癌的诊断价值，提高乳腺癌的正确诊断率。

First, the second category of professional pressure vessel design, manufacturing company specializes in designing and manufacturing various specifications strong magnetic coupling blender, stir strong magnetic coupling of high pressure - reactor, hydrogenation reactor, polymerizer, magnetic glass kettle, ultrahigh-pressure cauldron of hot water, Sulfide cans, refined liu kettle, autoclave reactor, pipeline reactor, mechanical seal reactor and its associated pressure tank, the condenser, Tajikistan, etc., its structure, low-pressure high school, heating, stirring form, the changes in speed, automatic Can be controlled by standard or as requested by users of matching custom, the main material 0 Gr18Ni9 (304), 0Gr18Ni10Ti (321), 0 0Gr17Ni14Mo2 (316L / 2 Mo Ti), and other trademark stainless steel, titanium, Hastelloy alloy, Study Nile because of alloys, nickel-wood, wood of Zirconium, tantalum wood, silver material, of tetrafluoroethylene, carbon steel, and composite materials as its use of composite panels made of.

一、二类压力容器专业设计、制造公司专业设计制造各种规格强磁力偶合搅拌器、强磁力偶合搅拌高压—反应釜、氢化釜、聚合釜、磁力玻璃釜、超高压水热合成釜，硫化罐、精镏釜、蒸压釜、管道反应器、机械密封釜，及与其配套的压力罐、冷凝器、塔器等，其结构形式、高中低压、加热方式、搅拌形式、转速变化、自动控制均可按标准或按用户工艺要求进行选配定制，主体选材0Gr18Ni9（304）、 0Gr18Ni10Ti（321）、0 0Gr17Ni14Mo2（316L/钼二钛）等各种牌号不锈钢、钛材、哈氏合金、因考耐尔合金、镍材、锆材、钽材、银材、四氟存里、碳钢等，及用其材料复合成的复合板制成。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。