一个困扰着行星科学家的问题是:海洋是怎样在像地球这样由硅酸盐和金属组成的石质行星的表面形成的?
One question that has baffled planetary scientists is how oceans formed on the surface of terrestrial planets like Earth — rocky planets made of silicate and metals.
潮湿和干燥条件的交替波动表明,月球上每天都在生成水——太阳风中的氢原子核与月球表面富含氧的硅酸盐矿物相撞而成。
The waves of damp and dry conditions suggest water is created on the moon every day, when hydrogen nuclei in the solar wind slam into oxygen-rich silicate minerals on the moon's surface.
这些事情告诉我们,即使不需要氧气并且COROT - 7b的溶液表面没有延迟柯克船长及其同伴,持续的硅酸盐岩石雨可能会。
Something tells us that if the lack of oxygen and the molten surface of COROT-7b didn't put off Captain Kirk and company, constant showers of silicate rocks might.
硅酸钠能使软木粉粘结在模具表面,而且还有助于软木粉耐受熔融铅合金的碳化作用。
The sodium silicate makes the cork stick to the mold surface and also helps to withstand the charring action of the molten lead alloy .
硅酸钠能使软木粉粘结在模具表面,而且还有助于软木粉耐受熔融铅合金的碳化作用。
The sodium silicate makes the cork stick to the mold surface and also helps to withstand the charring action of the molten lead alloy.
硅酸钠浓度与反应温度之间的交互作用,对沉淀二氧化硅的BET比表面积影响显著。
BET specific surface area is influenced very much by the interaction of concentration of sodium silicate and reaction temperature.
试验结果表明,腐殖酸钠的多基团大分子附着在硅酸二钙分子的表面上,使其不与溶液接触而避免二次反应的发生;
The results showed that the big molecules of humic acid sodium enwrapped dicalcium silicate surface , which prevented dicalcium silicate from contacting with the solution.
以铝硅酸盐工业废渣为原料,分别进行了表面活性剂、偶联剂单一表面改性和复合表面改性试验研究。
Using aluminosilicate trade waste as a raw material, the experimental research on single surface modification and compounded surface modification of surfactant and coupling agent was performed.
采用静滴法测量并对比典型低膨胀硼硅酸盐玻璃和普通钠钙硅玻璃的熔体密度和表面张力。
In the present research, surface tension and density of borosilicate melts were measured and compared to that of Na-Ca containing glass melt using sessile drop method.
用极化曲线法研究了硅酸盐在碳钢表面氧化物上的电化学行为;
Meanwhile, the electrochemical behavior of silicate on the oxide of steel surface was studied by using the method of polarization curve.
以液体硅酸钠和硫酸为原料,在室温下反应合成沉淀白炭黑,并用三甲基氯硅烷(TMCS)对其进行表面改性。
The precipitated silica is prepared by using liquid sodium silicate and sulfuric acid as raw materials at room temperature and modification agent TMCS is used for its surface modification.
结果表明:钠钙硅酸盐玻璃风化表面产物主要为钠和钙的碳酸盐。
The results indicate that the reaction products on the weathered surface of soda-lime silicate glasses are mainly sodium and calcium mixed carbonate.
选取了新型干法窑、湿法窑和立窑等不同烧成工艺条件下所生产的熟料,在同一实验磨中磨制成比表面积相近的硅酸盐水泥。
Portland cements with similar specific surface were made in the same laboratory-mill with different clinkers produced in new type dry process kiln, wet process kiln, and shaft kiln.
分析了我国铝土矿中一水硬铝石和铝硅酸盐脉石矿物的晶体结构与表面性质。
The crystal structure, wettability and floatability of diaspore and other gangues like kaolite, illite and pyrophyllite were discussed.
用于无机硅酸锌或喷锌层的表面起渗透封闭作用,减少起泡现象。
For penetrating sealing and reducing popping on fully cured inorganic zinc paint and heat-sprayed metallic zinc coating.
而硅酸盐夹杂物的表面能只为氧化铝的10 ~(- 8),具备在钢液中均质形核的条件。
The interfacial energy of silicates, however, is only 10-8 times of that of alumina and, thus, the silicates have the precondition of homogenous nucleation in the steel.
非离子表面活性剂,碳酸钠,硅酸钠。
无机材料由层状硅酸盐、硝酸盐或它们经共沉淀水热反应与表面处理反应形成纳米分散悬浮液。
The inorganic material is nano dispersed suspension formed by co-precipitation hydrothermal reaction and surface treatment reaction of laminated silicate, nitrate or the both.
采用溶胶—凝胶法,以正硅酸乙酯、异丙醇、水为原料制备了掺杂有机颜料酞菁蓝的玻璃表面装饰膜。
Decoration film on glass surface doped with phthalocyanine blue was prepared by sol-gel process using tetraethoxysilane, isopropanol and water as the raw materials.
再通过提高水泥比表面积等技术措施,稳定生产525r普通硅酸盐水泥。
Reliable production of 525r ordinary Portland cement was therefore ensured by increasing the specific surface area of cem...
硅酮铝涂料,耐高温,可以涂布于处理过的钢或无机硅酸锌漆表面。
IR98 is a 100% silicone aluminum coating with high temperature resistance. Applied on prepared steel or zinc silicate shop primer.
硅酮铝涂料,耐高温,可以涂布于处理过的钢或无机硅酸锌漆表面。
IR98 is a 100% silicone aluminum coating with high temperature resistance. Applied on prepared steel or zinc silicate shop primer.
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