1.
Vacuum Polarization of Scalar Fields in Flat Spacetime with Nontrivial Topology;
非平凡拓扑平直时空中标量场的真空极化
2.
When this tensor vanishes, the space is calleda flat.
当这一张量为零时，空间叫做平直空间。
3.
There was hardly any free time.
简直没有什麽空闲时间.
4.
Study on the problem of possition relationships between plane and plane,straight line and straight line and straight line and plane in space;
空间中平面与平面、直线与直线及直线与平面间位置关系研究
5.
Level with a person's eyes when looking straight ahead
（直视时）与眼睛相平的
6.
fasting blood - sugar level
【医】空腹时的血糖水平
7.
A Direct Algorithm of the Distance Between Two Parallel Planes in Space;
空间两平行平面间距离的一个直接算法
8.
Analysis on Working Conditions of Vent Riser in Case of Excessive Vent and Calculation of Vertical Reaction Force
超量放空时放空立管工况分析与垂直反力计算
9.
At noon the sun beat down on our heads.
晌午时分，烈日当空，直射在我们头上。
10.
He stood up when the helicopter appeared in the sky.
当直升机在天空出现时，他站了起来。
11.
Being nearest in time or space;directly
（在时空上）最接近地，直接地
12.
a gallery quite often is added to make use of space vertically as well as horizontally.
画廊常常要附加利用垂直的和水平的空间。
13.
A horizontal array of spaces and vertical bars which transmits coded message.
传送编码信息的一种垂直条和空格的水平阵列。
14.
Normal Vector and Directional Vector are Used for Solving Space Problems or Linear Problems;
巧用法向量与方向量解决空间平面及直线问题
15.
Novel method of space horizontal line localization based on single catadioptric omnidirectional image
基于单幅全向图像的空间水平直线定位新方法
16.
When the intersection angle at the horizontal level equals zero, the angle in the vertical direction is also zero.
当水平夹角为零时, 垂直夹角也为零。
17.
He always kept his cars nice.
他平时把汽车一直保养得很好。
18.
Trimming of Helicopter with Consideration of the Ground Effect;
悬停时考虑地面效应的直升机的配平