立方

Differential Thermal Analysis did not reveal the ammonium perchlorate phase change from rhombic to cubic.

差热分析没有测出过氯酸铵从正交晶向立方晶的相变。

Finally, it is concluded that the right-angled roof prism should be used instead of the corner-cube prism.

最后得出可以用直角屋脊棱镜代替立方角锥棱镜的结论。

The relatively density of CZ is much higher than that of rock crystal.

立方氧化锆的相对密度比水晶的相对密度要高得多。

To raise the polishing efficiency of Cubic boron nitride superhard material, crank rocker arm mechanism has been developed by using Computer Simulation Technology.

为了提高立方氮化硼超硬材料的抛光效率，采用计算机仿真技术开发了曲柄摇杆抛光机构。

The nucleation-growth mechanism for cubic and rod-shaped CaCO3 nanoparticles is discussed. This may be associated with the structure and shape of PMAA-DDT.

分析了立方状和棒状纳米碳酸钙的形成机理，发现这可能与PMAA-DDT的分子结构与形状有关。

Many California cities also passed laws to harass the Chinese. San Francisco, for instance, passed an ordinance in 1870 that prohibited anyone form occupying a sleeping room with less than 500 cubic feet of breathing space per person. This "health law" allowed the police to make raids on crowded tenements in Chinatown and roust out any sleeping Chinese residents who were violating the ordinance while they slept.

不仅如此，那时加州许多城市都通过了排华法案，以旧金山为例，1870年那里通过一条法令，"禁止一位华人占有一间超过500立方英尺呼吸面积的卧室"，这项"健康法律"允许警察对拥挤不堪的华人出租屋进行深夜突袭，并可以将在沉睡中触犯了法律的中国移民扔到大街上。

Compared with other methods, the present solvent thermal method can produce ITO nano-powders with high purity and uniform particle size. The manipulation is very simple and convenient and no calcination process is needed. The reaction temperature can be as low as 190 ℃, which is by far the lowest temperature in ITO nano-powder preparation. The sample also gives a good dispersion property benefited from the unique solvent thermal reaction environment.

结果表明，制备的ITO纳米粉体为立方晶相，粉体的平均颗粒小于100 nm；与已有的ITO纳米粉体制备方法相比，本溶剂热法制备过程无需高温烧结、流程简单，反应过程所需的温度可低至190 ℃，是迄今为止文献报导制备ITO的最低温度，同时所得产物纯度高、粒度均匀、分散性很好。

The conversion of Eu~(3+)→Eu~(2+) in KMgF_(3)∶Eu is almost 100% at the low dopant concentration and the saturant dopant is 0.29% molar fraction.

KMgF3具有典型的立方钙钛矿结构特征，是各向同性的强离子性晶体，被认为是理想的激光基质材料。

The variety of synthetic gemstone includes synthetic titanic schorl, titanate, YAG, rolled gallium garnet, synthetic cubic diocroma, synthetic sapphire, synthetic spinel, synthetic titanic schorl, synthetic alexandrite, synthetic diamond, synthetic emerald, synthetic bleak and synthetic quartze.

合成宝石种类包括（合成金红石、钛酸锶、钇铝榴石、轧镓榴石、合成立方锆石、合成蓝宝石、合成尖晶石、合成金红石、合成变石、合成钻石、合成祖母绿、合成欧泊、合成石英）。

Pore structure experiment shows that porosity of high volume fine mineral mixture RPC is about 5%, the pore distribution is uniform and the main pore is small. When the cement content of high volume fine mineral mixture RFC is 300 kg/m^3, its sclerotium hydration products is dense packed by irregular equal Ⅲ style C-S-H gels. The gels are fine, dense, and integrate with the aggregate.

孔结构试验表明，大掺量矿物细粉活性粉末混凝土的孔隙率均在5%左右，孔分布情况很均匀，主要以微小的小孔为主；水泥用量为300 kg/立方公尺的大掺量矿物细粉活性粉末混凝土硬化体水化产物主要由不规则等粒子状的Ⅲ型C-S-H凝胶紧密堆积在一起，凝胶精细、致密，且与骨料融为一体。

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。