The intensity of effects of all drugs on vascularring was presented by the maximum diastolic rate, i. e. the percentage of contracted extent after and before administration.
各种药物对血管环的作用强度用最大舒张率表示，即加药后收缩幅度与加药前收缩幅度的百分比。
2
The vascular bundles of the primary structure in stem are ring arranged, and the node is unilacunar and 3-traced, which is from three vascular bundles or one vascular bundle.
茎的初生结构中多个维管束排列成环状，节部为单隙三迹，叶迹分别来自于3条维管束或同一条维管束。
3
The vascular cambium extends to form a complete ring of meristematic tissue around the stem, the separate vascular bundles being linked by interfascicular cambium.