By inserting electrodes into one or more of the Chambers of the heart, via a large vein, it is possible to mimic its function by applying small electrical shocks at regular intervals.

把电极通入一个或多个心房或心室，并使导入一条大静脉，就可以通过有规律的小幅电击模拟窦房结发挥作用。

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Nurses pricked her wrists, her ankles, her neck. Every day they had to find a new vein in her small body to inject the medicine.

每天护士刺她的手腕、足踝、颈部，尝试在她细小的身体上找寻一条新的血管来注射药物；

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The vascular plexus of the pigeon small intestinal villi consisted of afferent mini artery, capillary network and efferent mini vein.

家鸽小肠绒毛血管丛由输入小动脉，毛细血管网和输出小静脉组成。

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Two injection sites were used: the surface of the small intestine and the hepatic portal vein that connects the pancreas and the liver, where islet transplantation normally is performed.

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At Colchester Zoo, staff stroked Otto the rhino's ear, simultaneously calming the patient, bringing up a vein and slipping in a small syringe.

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One of the doctors used by US Postal, Michele Ferrari - nicknamed Doctor Death by reporters - found ways of helping to reduce the EPO glowtime by using small "microdoses" injected directly into the vein, Hamilton says.

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