- 直接合成
- direct: adj. 1.笔直的，一直线的；正面的。 2.直接的。 ...
- synthesis: n. (pl. -ses ) 综合，【化学】合成；【逻辑 ...
- dds direct digital synthesis: 直接数字合成
- direct digital frequency synthesis: 直接式数字频率合成
- direct digital synthesis: 直接数字合成
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direct synthesis中文什么意思
- 直接合成
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例句与用法
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- Recent progresses in the study on the conversion of syngas to ethylene glycol , including direct synthesis by syngas and indirect synthesis by methanol and formaldehyde or oxalate , are introduced
摘要介绍了合成气合成乙二醇的工艺进展情况，包括合成气直接合成法、甲醇甲醛合成法和草酸酯法等。 - These amorphous carbon tubes are totally different from those graphitized carbon nanotubes obtained through traditional methods . the simple and direct synthesis method is superior to the usual casting method by mesoporous silica materials
相对于利用中孔sio _ 2为模板合成的中孔碳材料，我们的合成方法更简单直接，并且如此大孔径的有序中孔碳材料也是首次报道。 - The perovskite - type metal oxides supports and the corresponding supported pd catalyst were prepared by microwave , and characterized by xrd , sem and used in the direct synthesis of diphenyl carbonate ( dpc )
摘要利用微波法制备了钙钛矿型复合氧化物载体及把负载钙钛矿型催化剂，用xrd和sem对载体及催化剂进行了表征，并将微波法制备的催化剂用于一步氧化羰基化合成碳酸二苯酯( dpc )实验。 - The technologies for producing iminodiacetic acid , e . g . chloroacetic acid - glycine method , chloroacetic acid ammoniation , ammonium triacetate , direct synthesis based on hydrocyanic acid , diethanolamine dehydrogenation and ethanolamine methods are introduced
摘要综述了亚氨基二乙酸的生产方法，包括氯乙酸甘氨酸法、氨代氯乙酸法、氮川三乙酸法、氢氰酸直接合成法、二乙醇胺脱氢法和单乙醇胺法。 - This thesis describes the three important methods for designing pid controller : imc - based method , frequency method and direct synthesis method . we respectively design the pid controllers for the first - order plus dead - time processes , second - order plus dead - time processes , non - minimum phase processes , integrating and unstable processes , then , performance assessment and robustness metrics are used to compare the pid controllers of the individual process
论文着重研究了pid控制器的三种重要设计方法：内模法、频域法和直接综合法，并从确定性性能指标和鲁棒性性能指标的角度，比较这些设计方法在一阶加纯滞后、二阶加纯滞后、非最小相位、积分和不稳定过程pid控制器设计中的应用效果。