A white crystalline acid, C3N3 ( OH) 3, that decomposes with heating to form cyanic acid.

Results showed that sodium cyanate with 98.1% purity could be obtained in the medium of DMF, when the mole ratio of urea to anhydrous sodium carbonate was 2.5, the reaction temperature 120~ 140 ℃ and reaction time 8~ 10 h.

实验结果表明，在DMF反应介质中，当尿素与无水碳酸钠物质的量比为2.50，反应温度120~140℃，反应时间8~10h，可以制得纯度为98.1%的氰酸钠产物。

The preparation of high purity sodium cyanate by liquid-solid chemical reaction method

液固化学反应法制备高纯度氰酸钠

Hydantoin was synthesized from glycine and sodium cyanate, which was condensed with benzaldehyde to give monohydrated sodium phenylpyruvate in 67.0% of overall yield after alkaline hydrolysis.

由甘氨酸和氰酸钠反应合成海因，然后与苯甲醛缩合，经碱水解得到一水合苯丙酮酸钠，总收率为67.0%。

Sodium cyanate was prepared from reactants& urea and anhydrous sodium carbonate through liquid-solid chemical reaction method, in the solvent of N, N-dimethlformamide ( DMF).

使用液固化学反应法，以尿素和无水碳酸钠为原料，在N，N-二甲基甲酰胺（DMF）溶剂的反应介质中，制备了氰酸钠产品。

Process of synthesizing ACVA from cyan alcohol was studied, using sodium cyanide, levulinic acid, and A as starting materials.

对氰醇法合成ACVA的工艺进行了研究，该法采用氰化钠、果糖酸及物质A为原料。

All-Solid-State Continuous-Wave Doubly Resonant All-Intracavity Sum-Frequency Mixing Cyan Laser at 500.8 nm

全固态复合式内腔和频500.8nm连续波青光激光器

Adaptive digital beam forming algorithm and its realization in a CW radar

连续波体制自适应波束形成算法及实现

Digitized multiple frequency CW radar is a kind of new system radar.

数字化多频连续波测距雷达是一种新体制雷达。

Analysis and Study of a CW Radar System Modulated by Binary Phase Code

二进制相位编码调制连续波雷达系统的分析与研究

A New Method of IF Signal Sampling in Quasi CW Radar

一种准连续波雷达中频采样的新方法

Improvement on Raging Performance of Multiple Frequency CW Radar Based on Acceleration Compensation

基于加速度补偿提高多频连续波雷达测距性能

Acquisition System for Traffic Information Based on CW Radar

基于连续波雷达的交通信息采集系统研究

Observations on the black cutworm in the Moyu District of Sinkiang Uighur Autonomous Region

新疆墨玉小地老虎的初步观察小地老虎与粘虫发蛾期同步现象的探讨

Another field experiment showed that: 0.3% azadirachtin EC on black cutworm has a good control effect, up to 69.29%.

几种植物源农药的药剂筛选结果表明：0.3%印楝素乳油对小地老虎具有不错的防效，可达69.29%。

The flight activity of the Black Cutworm Moth

小地老虎成虫的飞翔活动

The behavioral response of the male black cutworm moth to female sex pheromone

小地老虎雄蛾对性信息素的行为反应

Simulation experiments on the compensation of cotton population to the decrease of plant number caused by black cutworm

小地老虎为害棉苗缺株产量损失及棉株群体补偿力模拟试验

Effects of temperature on laboratory population of black cutworm

不同温度对小地老虎实验种群的影响

Results: After treatment, blood inorganic phosphorus and PTH decreased ( P < 0.01 or P < 0.05) and blood calcium increased ( P < 0.05) in the cuttlefish bone treatment group as compared with the other two group;

结果：海螵蛸治疗组与对照组和碳酸钙治疗组比较治疗后血磷降低（P<0.01）、PTH水平降低（P<0.05），血钙升高（P<0.05）；

After treatment, blood inorganic phosphorus and PTH decreased significantly in the cuttlefish bone treatment group as compared with those in the control group ( both P < 0.01).

海螵蛸治疗组与对照组治疗后比较，有明显降低血磷（P<0.01）和PTH作用（P<0.01）。