Then A is positive semidefinite, negative definite and negative semidefinite.
则A是半正定，负定，半负定的。
The first blow is half the battle.--Oliver Goldsmith
第一次打击决定战役的半个胜负。——戈德斯密斯
At that point, the game was essentially over, although the suspense was not.
尽管比赛还有大半，但是当时比赛差不多胜负底定了。
Under the guidance of the teacher, Students designed the experiment themselves to measure an average power for half wave rectifier and capacitance filter in load consuming resistance.
在教师指导下,由学生自行设计“测定半波整流电容滤波电路负载电阻上消耗的平均功率”实验。
Designing experiment " Measure an Average Power for Half wave Rectifier and Capacitance Filter in Load Consuming Resistance";
对设计实验“测定半波整流电容滤波电路负载电阻上消耗的平均功率”的探讨
An element introduced into a semiconductor with a negative valence greater than that of the pure semiconductor.
施主放进半导体中的元素，其负价大于纯半导体
converts the negative half wave of an alternating current into a positive half wave.
把负极半波交流电转变成正极半波交流电。
measurement of work load
工作负荷测定 工作负荷测定
Each of these hemispheres is responsible for specific tasks.
这两个脑半球分别负责不同的任务。
Four teams are going to battle it out tonight in the semifinals.
四个队将在今晚的半决赛中决一胜负。
The accountant prepare a balance sheet for the first half year.
会计已准备好上半年的资产负债表。
The accountant has prepared the balance sheet for the first half - year
会计师已准备好上半年的资产负债表
The accountant have pre pare the balance sheet for the first half year.
会计已准备出上半年的资产负债表。
It is now necessary to introduce a sign convention for radii of curvature.
现在必须介绍曲率半径的正负号规则。
Some Studies about Linear Preserver Problems over Antinegative Semirings;
非负半环上线性保持问题的若干研究
Experimental Research on Negative Capacitance in LEDs;
半导体发光二极管负电容的实验研究
Negative Capacitance and High-Speed Modulation of Semiconductor Light-Emitting Devices;
半导体发光器件的负电容与高速调制
Negative stiffness based control strategy of vehicle semi-active suspension
车辆半主动悬架负刚度控制策略研究