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The traditional solid phase reaction of preparation has many disadvantages: it is very difficult to get the pure calcium-titanium mine phase even at the annealing temperature of 1000DEG C; the size of the material is very large and ununiform; the powder needs very high agglutinating temperature (1350DEG C) to get pyknotic ceramics.

固相反应法制备铌钪酸铅，在1000℃的较高的煅烧温度下也难于得到纯钙钛矿相的粉体，且颗粒尺寸大，尺寸分布不均匀，且这种粉体而要求高的烧结温度(1350℃)以获得致密的陶瓷。

Sodium Pyroantimonate is a white powder which is soluble in inorganic acid and it is used mainly as a clanrificant for super glass making.

焦锑酸钠是一种溶于无机酸的白色粉末，主要用于高档玻璃作澄清剂。

A careful control of processing conditions will give rise to a perovskite powder with less than 2％ pyrochlore phase.

对介电应用而言，此杂相含量水平是可以接受的，不至于对性能产生多大的负面影响。

Pyrochlore phases were not observed in the material. The purity and homogeneity of the PMNT powder was improved by controlling process carefully.

通过对初始原料和工艺过程的控制提高了PMNT粉体的纯度和均匀性。

In this paper,a simple and effective method to prepare amorphous ZnO nano-powder by low temperature pyrolytic reaction is reported.

报导了一种简单而有效的制备非晶ZnO 纳米粉末的方法，即固态低温热解法。

Iron powder, pyrophoric, see

铁粉，发火的，见

However, I think that inmaking the experiment, we ought to employ, not the ordinary powder, thesupply of which, I think, should remain untouched, but the pyroxyle whichwill never fail us.

可是，我想还是把普通火药原封不动地留着不要用，在试验的时候用棉花火药，因为棉花火药是用不完的。

Theywere charged with pyroxyle, taking into consideration its explosive power,which, as has been said, is four times that of ordinary powder: theprojectile to be fired was cylindroconic.

前面已经说过，棉花火药的爆炸威力相当于普通火药的四倍，他们考虑到这一点，然后给大炮装上适当量的棉花火药。炮弹是圆锥筒形的。

Experimental study: effects of three therapies of acupuncture treatment combined with pharmacotherapy, simple acupuncture treatment and treatment of Danggui Shaoyao Powder on the dementia rats due to hippocampal CA1 lesions induced by quinolinic acid were observed.

实验研究：采用随机对照的方法，系统观察并比较了采用针药结合、单纯针刺和单纯用药疗法对QA损毁海马CA_1区所致痴呆大鼠模型的海马神经递质Glu和抗氧化指标的影响。

As a solvent, it was mixed with various quantity of pigskin collagen powder. During the dissolution, three kinds of heating methods were applied. The one was be heated in water bath directly, the second one was be heated in water by microwave radialization and the third one was be heated by microwave radialization directly.

通过普通水浴加热，微波辐射水浴加热和微波直接辐射加热三种方式研究了离子液体对胶原蛋白的溶解能力，对不同质量浓度的溶液进行傅里叶变换红外测定，分析溶液中的胶原蛋白结构的变化，最后，对溶液进行再生得到皮胶原蛋白膜，并进行红外分析。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。