The intensity of effects of all drugs on vascular ring 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。
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。
The vascular cambium extends to form a complete ring of meristematic tissue around the stem, the separate vascular bundles being linked by interfascicular cambium.
维管形成层向两侧延伸直至形成一个茎内的分生组织环，各个维管束被束间形成层联系在一起。
Pulmonary artery ring was used to determine the pulmonary artery tension by using routine blood vascular perfusion in vitro under the same conditions.
离体血管环水平：相同条件，离体血管灌流方法检测肺动脉环张力变化。
Pulmonary artery ring was used to determine the pulmonary artery tension by using routine blood vascular perfusion in vitro under the same conditions.
离体血管环水平：相同条件，离体血管灌流方法检测肺动脉环张力变化。
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