In reaction process P-zeolite first appears the short column crystal and then the crystal pattern changes from short column to rhombohedron with reaction time lasting.
在反应过程中，P沸石首先呈短柱状结晶，随着反应时间延长，结晶形态发生变化，由短柱状向菱面体过渡。
The distilled water was added to the sulfonation liquid to obtain p-toluenesulfonic acid crystal.
将蒸馏水加入磺化液中，得到对甲苯磺酸结晶。
He found that producing p-type gallium nitride, which made use of ammonia at high temperatures, trapped hydrogen atoms inside the crystal.
他发现在生成p型氮化镓的时候需要利用高温氨，以致于把氢原子引入了晶体之中。
The F-P type tunable liquid crystal (LC) optical filter is a kind of compact tunable filter with narrow bandwidth and low tuning voltage.
型可调谐液晶光学滤波器是一种小体积窄带宽低压调谐滤波器。
Synonym: potassium phosphate formula: KH2PO4 Appearance: colorless, transparent crystal used: for the pharmaceutical industry and the high P and K compound fertilizer.
别名：磷酸一钾分子式：KH2PO4外观：无色透明晶体用途：用于制药业及高效磷钾复合肥料。
Optical storage based on photoinduced birefringence in azobenzene side-chain polymer liquid crystal (P-CN) film is reported.
本文实验研究了偶氮侧链聚合物液晶薄膜(P -CN)的光致双折射和光存储性质。
Attention: Paper certificate and crystal card cannot be sent to post-office p. o. box.
注意：纸质证书和水晶牌不能被寄到邮局的邮政信箱。
The present invention relates to the stable and high purity 7-phenacetylamino-3-pyridylmethyl -3-cynnematin-4-p-methoxybenzyl carboxylic ester crystal and its preparation process.
本发明涉及一种稳定的、高纯度的7-苯乙酰氨基-3-吡啶甲基-3-头 孢菌素-4-羧酸对甲氧苄酯晶体及其制备方法。
In practical use, an N-type and a P-type are created side by side in the same semi-conductor Crystal, forming a P-N junction.
在p型和n型半导体材料之间渡越区中的一个面，在这里施主杂质和受主杂质的浓度相等。
In practical use, an N-type and a P-type are created side by side in the same semi-conductor Crystal, forming a P-N junction.
在p型和n型半导体材料之间渡越区中的一个面，在这里施主杂质和受主杂质的浓度相等。
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