sn的例句大全

SNB , NP-FH , and SN-MP were increased by 1.56 ( P < 0.01 ), 2.66 ( P < 0.01 ) and 2.31 ( P < 0.01 ), respectively.

NP -FH 增加2.66 ( P<0.01 ), NA-PA 减少3.87 ( P<0.01 ),SN-MP增加2.31 ( P<0.01 ), 颌骨间矢状和垂直关系的不调得到明显改善.

They seemred 882153 to come in stages and then start aga sn prfjbc but felty deeper.

他们似乎是分阶段进行，接着，又-再次开始，但感觉更深一步

Three elements in the reference materials of Sn alloy were analyzed by ED-XRF.

本文提出 X 荧光能谱法测定锡基合金中三个元素含量的方法.

A Mossbauer study of pt-sn/ γ-al_2o_3 dehydration catalysts under the reaction conditions

反应条件下Pt-Sn/（γ-）Al2O3脱氢催化剂的穆斯堡尔谱研究

Dehydrogenation of Propane over Pt-Sn-K/ Al_2O_3 Catalyst in the Presence of Hydrogen

丙烷在Pt-Sn-K/Al2O3催化剂上的临氢脱氢反应

Influences of li_2o on acidity and MCH dehydrogenation performance of pt-sn/ γ-al_2o_3 catalyst

Li2O对Pt-Sn/γ-Al2O3催化剂表面酸性与MCH脱氢性能的影响

Study on the intrinsic kinetics of propane dehydrogenation over pt-sn/ al_2o_3 catalyst

在Pt-Sn/Al2O3催化剂上丙烷脱氢反应动力学

The study of Mossbauer spectra of Pt-Sn/ γ-Al_2O_3 dehydrogenation catalysts

Pt-Sn/γ-Al2O3脱氢催化剂的穆斯堡尔谱研究

Optimization of composition of pt-sn-k/ al_2o_3 catalyst for dehydrogenation of propane to Propene

Pt－Sn－K／Al2O3丙烷脱氢催化剂组成的优化

First-principle Calculation ( by VASP) indicates that the yellow luminescence derives from the Sn vacancy ( VSn). Solvent-thermal method is in a critical condition, can occur under the normal conditions the reaction can not be achieved, and can generate metastable state structure of materials.

第一性原理计算表明所激发的黄光发射来自于锡空位（Vsn）。溶剂热法中有机溶剂处于临界状态下，能够发生通常条件下无法实现的反应，并能生成具有介稳态结构的材料。

The fraction-dimension of Sn is 1.7 in garnet, 1.8 in vesuvianite, and 1.9 in anaphase epidote.

Sn元素在石榴子石中分布的分形维为1.7；在符山石中的分形维为1.8；

A kind of organo-molybdenum composite lubricant based on 650 SN mineral oil was prepared synthesis methods.

以矿物基650SN油作为基础油,采用复配技术制备了有机钼复合润滑剂.

Only when Sn content in Pb-Ca alloy was more than 0.6wt%, its anodic dissolution of Sn could been observed from cyclic voltammogram and had effect to eliminate the premature capacity loss.

当Pb&Ca合金中锡含量超过0.6%时才可能从循环伏安图观察到锡的阳极溶解，才能起克服早期容量损失的作用。

By using plasma arc method an Sn-P bronze hardfacing formed on steel 25, which contains more strengthening phases. The wearing property of the friction pair consisted of Sn-P bronze and Cr-plated wheel is better than that of bronze QAl 9-4 and Cr-plated wheel.

25钢基体锡磷青铜合金粉末等离子孤喷焊层，含有较多的强化相，与镀铬轮组成摩擦副，耐磨损性能明显优于由QA19-4青铜和镀铬轮组成的摩擦副。

A method for determination of Al, Ag , Bi , Cu , Cd , Co , Fe , Ni , Pb , Mg , Sn, Se, Zn in tellurium ingot by ICP AES were studied.

本文介绍了采用电感耦合等离子体发射光谱法(ICP-AES)测定碲锭中Al 、 Ag 、 Bi 、 Cu 、 Cd等13个杂质元素的方法.

The feed proportioning model for rolling 20 Sn-Al steel bimetallic plate is established by the regression method.

应用逐步回归方法,建立了轧制铝锡20铜─钢双金属板的配料模型;并对模型作自适应修正,提高了模型的预测精度.

Sn precipitation happens in earlier stage of crystallizing.

结晶过程前期锡优先析出.

In HC 1 solution ( 0.10～0.30 mol · L ~ (-1 )) , Sn , DBH-PF and emulsifier OP form a ternary complex.

在0.10 ～ 0.30mol·L~ ( -1 ) 盐酸介质中,锡与DBH-PF、乳化剂OP形成三元络合物.

Study the action of Sn in the production of APT by ion-exchange of hydrometallurgy.

较系统地研究了湿冶离子交换法生产仲钨酸铵工艺中杂质锡的行为.

Quaternarization is an important SN 2 nucleophilic substitution reaction; solvent has remarkable effect on it.

季铵化反应是一类重要的SN2亲核取代反应, 溶剂对该反应的影响很显著.