narrow leaved plantain是什么意思

用法例句

An Shanghai isolate of ribgrass mosaic virus (RMVsh) was isolated from Brassica chinensis (Qingcai).

长叶车前花叶病毒上海分离株 (RMVsh)是从上海郊区的青菜 (Brassicachinensis)上分离鉴定的 。

Study on Preparing Isolongifolene from Longifolene Catalyzed by Solid Superacid;

固体超强酸催化长叶烯制备异长叶烯的研究

Calculation for saturated vapor pressure of longifolene;

长叶烯饱和蒸汽压的估算

Vapor-liquid equilibrium for systems of pinane-αpinene-longifolene at atmospheric pressure;

蒎烷-α-蒎烯-长叶烯体系常压汽液平衡

A new process for preparing isolongifolene isomerized directly from heavy turpentine oil was studied.

探讨了以重质松节油为原料进行直接异构化制备异长叶烯的新工艺,选出了较为理想的GOn4-/TiO2(A)固体超强酸催化剂,确定了较好的反应条件为:催化剂用量为原料质量的1%～2%、异构化反应温度190～200℃,反应时间4h,异长叶烯得率达到90%以上,为工业化生产异长叶烯探索了一条"绿色"新工艺途径。

From analyses of GC and GC-MS, the main product is isolongifolene from isomerization.

研究了SO42-/TiO2-ZrO2型固体超强酸催化剂的制备及其催化长叶烯的异构反应,通过GC、GC-MS和标样分析,确定其主产物为异长叶烯。

Through the study on the preparation of isolongifolene with longifolene by isolate, a new method was found for the isolation using a multiple catalyst.

通过对长叶烯异构化制备异长叶烯方法的研究，找到了利用复合催化剂进行异构化反应的新方