[无脊椎]伸缩泡

contractile vacuoles───[无脊椎]伸缩泡

contract labor───合同雇工

contract labors───合同雇工

contract practice───特约医疗

contractable───adj.可感染的

contractible───adj.缩小的；[物]可收缩的

contractile───adj.可收缩的，有收缩性的

contracting bridge───合约桥牌（扑克牌游戏的一种）

contracting out───合同外包

Single contractile vacuole large, situated underneath peristomial lip.───单一、大伸缩泡位于口围缘的下方。

Single contractile vacuole located ventrally in anterior 1/4 of body.

The contractile vacuole expands and eventually discharges the water it contains to the exterior through the cell membrane.

To counter this, water is secreted into a contractile vacuole as fast as it enters the amoeba.

Single contractile vacuole situated near ventral wall of infundibulum. 28-33 pellicular striations from peristome to aboral trochal band and 5-8 from aboral trochal band to scopula.