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。
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。
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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