1.
Electromagnetic and Thermal Calculation during Back to Back Starting for Pumped Storage Machines;
抽水蓄能电机背靠背起动过程中电磁与热计算
2.
pickaback plane
(载于母机背上, 在空中飞出的)子机
3.
Headset (Top View) Headset(Button View)
耳机（正面） 耳机（背面）
4.
mechanical seal with low back pressure
背面低压式机械密封
5.
back reflection X-ray camera
背面反射X射线照相机
6.
backing machine
[地毯]背面上的胶机
7.
double-extraction non-condensing turbine
双抽气背压式汽轮机
8.
non-condensing automatic extraction turbine
背压调节抽气式汽轮机
9.
geared noncondensing turbine
齿轮传动背压式汽轮机
10.
diaphragm knapsack sprayer
背负式膜片泵喷雾机
11.
motorized knapsack mistblower
背负式机动鼓风喷雾器
12.
knapsack air-blast sprayer with engine drive
背负鼓风式机动弥雾器
13.
knapsack power mistduster
背负式动力弥雾喷粉机
14.
Background and authority for the subsidy
补贴的背景和主管机关
15.
Cell Phone Reading on the Background of Mobile 2.0
Mobile2.0背景下的手机阅读
16.
a person puts me on his or her back and jumps from the aircraft.
人们把我背在他们背后，从飞机上跳下来，
17.
His photo vest hung from the back of the chair, the cable release poking out of a pocket.
他的照相背心挂在椅背上,口袋上露出扳机带子。
18.
Experimental and Numerical Researches on Undulatory Dorsal/Median Fin Propulsion Modes;
背鳍/背臀鳍波动推进机理实验研究及仿真