Within minutes we left the last human developments behind us, and we rolled for hours that first evening past desert scrub of acacia and gum trees and comically steepled termite hills.
The troches may be made with a bi-layer tablet press rounded on one side and flat on the other, preferably using acaciagum in the flat side layer for adhesion.
锭剂可用双层压片机制备，从而一侧呈圆 形且另一侧是扁平的，优选在扁平侧层使用阿拉伯树胶用于粘附。
3
Gum Arabic: a colloidal substance, obtained from certain varieties of the acacia tree found in the Middle East. See Arabic gum.