查询词典 si

In the experience Salt、Sb and thulium can change primary Si and eutectic Si through changing the morphology, but the effect of modification is very defferent.

其中钠盐的变质效果强，锑次之，稀土变质效果最差；变质剂对Si相的变质主要是通过孪晶凹角沟槽机制进行的。

Salt is the best. Sb is better than thulium. The modification of modifying elements addition on Si takes effects through TPRE mechanics.

变质通过"毒化"孪晶凹角而抑制Si相在择优方向上的各向异性生长，迫使Si相产生多重孪晶并沿其它方向进行各向同性生长，长成等轴状。

The epitaxial growth of Er203 films has been achieved on bothSi(001) and Si(111) substrates at a growth temperature of 700℃and an oxygenpressure of 7×10~(-6) Torr.

在氧气压为7×10~(-6)Torr，衬底温度为700℃的条件下，我们在Si(001)和Si(111)衬底上分别获得了单一取向、结晶状况良好的外延Er_2O_3薄膜。

Swine influenza is caused by swine influenza virus, and it can induce an acute zymotic disease of respiratory tract. There were related reports about the outbreak of SI when the "Spanish" influenza was being in the USA, but until the late 1920s there was first SIV isolated from pigs.

猪流感(Swine Influenza，SI)是由猪流感病毒(Swine Influenza virus，SIV)引起猪的一种急性、高度接触性的呼吸道传染病。1918年美国首次报道了SI的爆发，而直到二十世纪二十年代末才从猪体中分离到第一株SIV。

The surface modification reaction is facile and the molecules are directly attached to the neighboring adatom and rest-atom with the formation of two covalent Si-C bonds at the Si (111)-7×7 surface.

我们的研究结果表明，Si（111）-7×7表面上空间分立的硅悬键在表面加成反应中可以看作为分立的活性表面自由基。

Si content in aleuronic layer was closely related to that in near aleuronic layer and center of caryopsis.

糊粉层中的Si含量影响着近糊粉层和颖果中部的Si含量。

It is shown from the assessment results that (1) both the TN and TP fluxes discharged from the Changjiang River to the Changjiang River estuary sea area increased continuedly, the DIN concentration in the sea areas increased continuedly, and the Si concentration decreased continuedly, which resulted in the significant changes in N/P/Si ratios;(2) the chlorophyll a concentration in the sea areas increased continuedly, and the significant changes in community structure of phytoplankton occurred;(3) the species and biomass of benthos declined greatly, and the bottom oxygen-poor water area increased significantly;(4) the range and occurrence frequency of red tide events in the sea areas increased greatly, and the algal toxic infection events of mussel were frequently found in the sea areas.

结果表明，长江向长江口海域输送总氮和总磷通量持续增大，长江口及其邻近海域无机氮浓度持续增高而硅浓度持续下降，并由此导致N/P/Si与比值的显著变化；该海域叶绿素a浓度持续增大，浮游植物群落结构也发生了显著变化；该海域底栖生物种类和生物量都大大减少，底层水低氧区面积也显著扩大；该海域赤潮事件无论是规模还是频率都大大增加，藻类毒素DSP/PSP贻贝传染事件也时有发生。

The results show that the effect of addition or no-addition of degasser on grain refinement of Al-5.0%Si alloy ingot is...

结果表明，除气剂的添加与否对Al-5%Si合金铸锭组织的细化没有影响，铸锭由粗大的柱状晶组织构成；采用合适的超声波处理时间，Al-5%Si合金铸锭的等轴晶获得率大幅度提高，可使整个铸锭组织变为细化的等轴晶组织；超声波振动时间过长将导致铸锭内气孔的增加；根据克劳修斯-克拉柏龙方程，某一强度的超声波引起的压力冲击波作用，导致液相转变为固相，引起了超声波的细晶作用。

The middle-graded layers of the ZrO〓-MoSi〓/Ni-Si-Mo FGM developed compose of the composites containing molybdenum and silicon solid solution nickelbased alloy and molybdenum disilicide dispersed zirconia-based composite.

ZrO〓-MoSi〓/Ni-Si-Mo系功能梯度材料的中间梯度层主要由含Mo和Si固溶元素的Ni基合金和含MoSi〓弥散相的ZrO〓基复合材料组成。

Instead, the erosion resistance is increased after FSP. The refined and uniformly distributed second phases, which are resulted from the FSP, can help to increase the hardness and further reduce the brittle fracture of the specimens. Si and nvAl3CuNi phases are usually found near or end of the grooves with little fracture. But the τ1 (Al9FeNi) phase is easier to be removed by the erodent cutting. It can be inferred that Si and nvAl3CuNi are useful to improve the erosion resistance of A384 aluminum alloy, but τ1 (Al9FeNi) phase is detrimental for the erosion resistance of A384 aluminum alloy.

经摩擦搅拌制程改质后，硬度提升，晶出相细化且均匀分布，降低脆性龟裂的现象发生，有助於改善A384铝合金的磨耗性质，其中，亦发现在冲蚀沟槽附近有残留和脆性破裂之共晶Si颗粒和nvAl3CuNiw晶出相，推测此两相为A384铝合金中有助提升磨耗阻抗的第二相；而τ1(Al9FeNi)晶出相则容易受到冲蚀颗粒的切削而被冲蚀颗粒移除，增加材料的重量损失，推测τ1(Al9FeNi)晶出相为A384铝合金中较不耐磨耗的晶出相。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。