Other dopants have also been studied.
其它掺杂剂也在研究中。
The working principle, hydraulic impact, noise have also been studied in this paper.
并介绍了工作原理，对液压冲击、噪声等问题进行理论动态特性分析。
Meanwhile, the effects of various kind of the environment factors have also been studied.
同时，探讨了各种环境因素的影响。
Sampling method, sample storage, optimum chromatographic condition test have also been studied.
研究了采样方法、样品保存和最佳色谱条件等。
Sampling method, sample storage, optimum chromatographic condition test have also been studied.
研究了采样方法、样品保存和最佳色谱条件等。
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