In the original experiment designed to simulate stardust , a family of large fullerenes formed in addition to the 60 - and 70 - atom molecules 在原先设计用来模拟星尘的实验里,除了60个或70个碳原子构成的富勒烯,还有一群大型富勒烯分子。
Designed three sets of communication protocol , and carried on experiment design and analysis to bus control competition way by ascii and enquiries way by binary 为此本文设计了三套通信协议,对其中ascii码总线竞争方式和二进制查询方式两套通信协议进行了实验与分析。
The experiment design included 2 levels nitrogen , 3 levels potassium with or without silicon application , and 2 plant densities , totally being 10 treatments with 3 replications 试验设计包括2个氮水平、 3个钾水平,施或不施硅肥、 2个植株密度,总共10个处理,三次重复(表2 ) 。
2 . the teaching strategy to promote group cooperative inquiry significantly promote student ' s understanding , practical apply , variable control and experiment design . 3 ( 2 )旨在促进小组合作探究的教学策略对学生的识记理解、实际应用、变量控制和设计实验表现出显著的促进作用。
A test system was developed and an l9 ( 3 ^ 4 ) orthogonal experiment design was used to test the pump efficiency under different flow rates , lifts , electric voltages and currents 并设计了试验系统,采用l9 ( 3 ^ 4 )正交试验,以离心式水泵效率为试验指标,进行了离心式水泵的流量、扬程、电压和电流的测量。