This is not currently possible with the "Collapse All" function. However inner-level folds are preserved when they have manually been collapsed within an outer-levelfold.
在展开“折叠全部”被折叠以后的外部文件夹，内在文件夹能保持折叠吗？
2
The detection limitation of PKS using antibodies was 1000 fold higher than Commassie blue staining, ready for detection of the probably very low level of PKS expression in plant.
利用抗体检测pks的检出极限比考马斯亮蓝染色高1000倍，应可用于检测植物中低水平的PKS表达。
3
Their interior planning is experimental, with apartments ranging from neat one-bedders with fold-out beds to split-level apartments.