半数

Half the garrison are on duty.

有半数卫戍部队在执勤。

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栓，半数发生脆性断裂。

Half of patients have polymyalgia rheumatica.

半数以上病人有风湿性多肌痛。

Half of them are here.

他们有半数人来了。

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

鞭毛是细一种特殊结构,约半数杆、极少数球和所有螺旋及弧都有鞭毛。

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「以色列美歌者」，诗篇有半数以上是由他写成。

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，半数患者有局部复发和远处转移现象，所以预后不佳。

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.

三趾滨鹬、翻石鹬、半蹼鹬、黑胸滨鹬，以及全世界半数以上滨鹬（redknot），都在这里啄食营养丰富鲎卵，以储备长程迁徙所需能量，其中有些鸟类总飞行距离达6900公里远。