The research done by Rawson and Pyc showed that practice tests lead learners to develop better keywords.
Rawson和Pyc 的研究表明，测试练习可以指导学习者去扩展更好的关键词。
The study author Mary Pyc, a postdoctoral fellow at Washington University in St. Louis and her co-author Katherine Rawson investigated pieces of information called "mediators."
该研究论文的撰稿人、华盛顿大学博士后玛丽·佩克和她的同事凯瑟琳·罗森着手于研究名为“介质”的信息碎片。
File checking occurs in the check function and simply looks for files ending with a tilde (~) or pound sign (#), beginning with a pound sign, or ending with the extension .pyc.
文件检查发生在check函数中，仅简单地检查以波浪号（~）或者井号（#）结束的文件，以井号后开始或扩展名 .pyc 结束的文件。
Spherical PyC was made by control of technical conditions. It is approved that condensation-polymerization mechanism exists in the CVD process by analyzing the intermediates qualitatively.
控制CVD工艺条件得到了球状热解碳，通过对沉积中间体的定性分析，证实了此过程中存在“缩聚机理”。
The main products are: JP Series winch irrigation system, the transfer of irrigation system, PYC series of vertical rocker-type nozzle, QZ, QH, QSZ, QSH series axis (mixed)-flow submersible pump.
主要产品有：JP系列绞盘式喷灌机、移管式喷灌机、PYC系列垂直摇臂式喷头、QZ、QH、QSZ、QSH型系列轴（混）流式潜水电泵。
The main products are: JP Series winch irrigation system, the transfer of irrigation system, PYC series of vertical rocker-type nozzle, QZ, QH, QSZ, QSH series axis (mixed)-flow submersible pump.
主要产品有：JP系列绞盘式喷灌机、移管式喷灌机、PYC系列垂直摇臂式喷头、QZ、QH、QSZ、QSH型系列轴（混）流式潜水电泵。
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