1) semi-metric

半度量
2) semi pseudo-metrics

半伪度量
1.
The concept of semi pseudo-metrics on lattices was provided,several kinds of decomposition of a pseudo-metric on a lattice as a sum of two semi pseudometrics are given,the relations of the topologies derived by them were discussd,and the relation between the semi pseudo-metric on lattices and the non-negative modular function on lattices is also discussed.
提出了格上的半伪度量函数的概念,给出了格上伪度量函数的几种分解,即,将伪度量函数表示为2个半伪度量函数之和,讨论了它们在格上的诱导拓扑之间的对应关系,并且研究了格上的半伪度量与非负模函数之间的关系。
3) halfmetric space

半度量空间
1.
The author proves theorem on contracting maps for halfmetric space and the existance of solution and the Continuousness of integral operator integral equation in Orlica space.
证明了半度量空间中的压缩映像原理 ,并应用其证明了Orlica空间中一类积分方程解的存在性及积分算子的连续性 。
4) measurement of half-width

半宽度测量
5) semiadditive measure

半加法度量
6) LC50

半致死质量浓度
1.
The acute toxicity tests indicated that 24,48,72,96 h LC50 for Brocarded carp at 25~27 ℃ were 30.
急性毒性试验表明,在25~27℃下,24,48,72,96 h的半致死质量浓度(LC50)分别为30。
2.
The experimental results showed that the 24,48,72,96 h LC50 values were 25.

4℃的条件下,分别研究了甲醛、三丁基锡对方斑东风螺幼体的急性毒性影响,实验结果表明,甲醛对方斑东风螺幼体24,48,72,96 h的LC50(半致死质量浓度)分别为25。
补充资料:可公度量和不可公度量
可公度量和不可公度量
ommensulble and incommensuable magnitudes (quantities)
可公度t和不可公度t【~e璐u由lea目in~men-su.ble magultodes(quanti柱es);“洲口Mel娜M毗“”“”-113Mep目M曰e肠eJ皿,一皿曰』 如果两个同类量(例如两个长度或两个面积)具有或不具有公度(common measure,即另一个同类量,所考虑的两个量都是这个量的整数倍),则相应地称这两个量为可公度量或不可公度量.正方形的边长和对角线,或圆的面积和丫的半径的平方,都是不可公度量的例尹.如果两个量是可公度的,则‘l艺们的比是有理数;相反,不可公度量忿比是无理数、
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参考词条