Etherification of butanol with ethylene oxide by a new style solide acid catalyst is investigated.研究了丁醇和环氧乙烷在一种新型固体酸催化剂上的醚化反应.The purified rice amylose and amylopectins were obtained by n - butanol recrystallization meth...
These are matrices that may be intersected.这是一些能分割的矩阵。The city is intersected by three main waterways.该城市由3条主要水路贯穿。Cuttings and core from the drill - holes have intersected conglomerate bands.钻粉和岩心已穿过了砾岩夹层....
他的投球在大联盟的击球员中是个传奇。His pitching was a legend among major league hitters.有个裁判认为投球犯规.One of the judges thought it was a foul throw.我看不出那样投球用意何在。I can't see the point of bowling a ball like that....