半数

Half the number of bolts in floating head of deethanizer overhead cooler were brittle fractured.

气体分馏装置脱乙烷塔顶冷却器浮头螺，发生脆性断裂。

Half of patients have polymyalgia rheumatica.

以上的病人有风湿性多肌痛。

Half the garrison are on duty.

有卫戍部队在执勤。

Flagella is an unique structure that presents in appropriate half of bacillus,few coccus,and all of spirilla and vibrio.

鞭毛是细菌的一种特殊结构,约的杆菌、极少球菌和所有的螺旋菌及弧菌都有鞭毛。

Half of them are here.

们有人来了。

David became known as the "sweet psalmist of Israel" for his skill in composing half of the psalms in Israel's hymnbook.

大卫成为「以色列的美歌者」，诗篇有以上是由写成。

The prognosis of malignant mixed tumor is poor due to local recurrence and distant metastasis in half of these patients via hemtogenous and lymphogenous spread-ings.

由于恶性混和瘤可经由血液及淋巴转移，患者有局部复发和远处转移现象，所以预后。

Sanderlings, ruddy turnstones, semipalmated sandpipers, dunlins and more than half the world's population of red knots are among the species that double their weight eating the nutritious eggs.

趾滨鹬、翻石鹬、蹼鹬、黑胸滨鹬，以及全世界以上的红腹滨鹬（redknot），都在这里啄食营养丰富的鲎卵，以储备长程迁徙所需的能量，其中有些鸟类的总飞行距离达6900公里远。