查询词典 Sn

As for seeding small cultivated, Itianly Agricola Company SN-1-130 vacuum planter has many special places on its structural design, manufacture technology.

就播小粒种子而言，意大利生产的SN-1-130气吸式精密播种机的工作性能较为理想，在其结构设计、制造技术及工艺组合有诸多独道之处。

SN and SD bearing basically are used prop up runner shaft coming back, like conveyer belt, fanner, advocate transmission shaft and pressure delay wait with electromotor.

SN以及SD轴承主要用来支撑旋转轴，如传送带、电风扇、主传动轴以及。。。。。。

Methods Changes in energy metabolism in 33 NN and 25 infants with SN were measured with calorimeter.

应用间接测热法测定了33例正常新生儿和25例SN患儿的能量代谢变化。

Carbon nanotubes were formed electrolytically in the LiCl melt with the diameters in the range of 75~100 nm, but β-Sn-filled carbon nanotubes were generated in molten LiCl+1.0%SnCl2 mixtures.

在 LiCl 熔盐中可得到直径为75~100 nm 的纳米碳管；在 LiCl+1.0 %SnCl2熔盐中可生成β-Sn 填充的纳米碳管。

This approach proves to be successful in the containerless processing of water and Pb-Sn eutectic alloy.

该方法在水和 Pb-Sn 共晶合金的声悬浮无容器处理实验中得到成功的证明。

Effects of P addition on the properties of Sn-9Zn eutectic lead-free solder alloy have been studied.

以Sn-9Zn合金为研究对象，考察了P的添加对其性能的影响，并对其机制作了初步探讨。

TH-904 is used as chelant in papermaking coating, building coating, concrete retarder, water reducer, woven and dyeing. Its performance can reach to that of SN-5040. Adding TH-904 to slurry during grinding process of bolus alba, lime carbonate, pottery clay, titanium pigment, French chalk, barium sulfate, coal-water slurry, etc., the viscosity can be largely reduced and the dispersed slurry is stable.

TH-904水性分散剂广泛用做造纸涂料及建筑涂料的分散剂、混凝土缓凝剂、减水剂以及纺织印染等行业作螯合分散剂，性能达到SN-5040水平，在高岭土、碳酸钙、陶土、钛白粉、滑石粉、硫酸钡、水煤浆及水泥等浆料的研磨加工过程中加入TH-904分散剂能极大地降低被加工物料的粘度，便于物料的加工，且分散后浆料粘度稳定。

The Sn atoms are considered as five-coordinate and exist as distorted trigonal bipyramidal geometry in a one-dimensional chain.

合成化合物的中心Sn原子为五配位，构成以Sn为中心，扭曲的三角双锥构型，通过分子间氢键形成一维链状结构。

The reaction performance of Pt-Sn-Li/Al_2O3/FeCrAl catalyst was measured,and the properties of the catalyst were characterized.It was found that reaction temperature,LHSV and the molar ratio of hydrogen to alkane have greatly affected on the catalytic performance of the Pt-Sn-Li/Al_2O_3/FeCrAl catalyst.Under a set of optimal reaction conditions,at 0.1 MPa,470℃,the molar ratio of hydrogen to alkane of 4 and LHSV of 0.14 mL·m~(-2)·h~(-1),the dodecane conversion is 6%,and the dodecene selectivity is about 72%.

结果表明：工业催化剂的催化性能比至今实验室制备的γ-Al_2O_3和SBA-15颗粒负载型颗粒状催化剂的性能好；反应温度、液时空速和氢烃摩尔比对Pt-Sn-Li/Al_2O_3/FeCrAl金属基整体式催化剂脱氢性能都有重要影响，最适宜的反应条件是压力为0.1 MPa，反应温度为470℃，进料氢烃摩尔比为4和LHSV为0.14 mL·m~(-2)·h~(-1)，此时十二烷的转化率约为6%，十二烯的选择性约为72%；活性组分涂层与金属基体结合良好。

Because the Bi atoms accumulated at the surface of the IMC layers inhomogeneously, partially impeding the IMC dissolving into the molten solder, a serrated-like Cu-Zn-Sn IMC layer was formed at the Sn-8Zn-3Bi/Cu interface

同时，由于Bi在金属间化合物表面的偏聚，部分地阻挡了金属间化合物向液态焊料的溶解，导致了Sn-8Zn-3Bi焊料合金界面金属间化合物层呈锯齿状。

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