tree pollen meaning in English

树木花粉

But seed orchards are difficult to control , because tree pollen spreads so far that alien , non - elite trees almost inevitably muddy the gene pool
但是有种子的果树很难控制，因为花粉传播的太远了，一些其它种类的树木就会不可避免地弄乱此基因库。
Surface - enhanced raman spectra are presented for tree pollen ( cottonwood and redwood pollen ) and a bacterium ( escherichia coli ) , and the e . coli spectra are compared with results obtained from the literature and with results obtained previously by mixing various concentrations of the bioanalyte with the silver colloid
增加表面积后之拉曼光谱发现于树花粉(棉白杨及红杉)及一种细菌(大肠杆菌) ，将大肠杆菌之光谱与文献中及一系列混和浓度之光谱进行比较。