从经济学的角度来看，为了应对负外部性，原则上应该征收的税收是准确的：对一升燃料征收的税应该等于使用一升燃料所造成的危害。
Economics is precise about the tax that should, in principle, be levied to deal with negative externalities: the tax on a liter of fuel should be equal to the harm caused by using a liter of fuel.
最后，根据电机学的知识，推导出了直线电机的数学模型，并在此基础上，设计了采用PLC控制的电磁举升系统的控制部分。
Finally, according to the knowledge of the motor, derives out the mathematics model of the linear motor. On this basis, designs the electromagnetic lifting system with PLC.
目的在细胞学和分子生物学水平上探讨红升丹提毒祛腐作用机理。
OBJECTIVE To investigate into the mechanism of Hongshengdan in removing toxin and slough at the level of cytology and molecular biology.
方法在解剖学研究的基础上，设计旋股外侧血管升支的臀中肌支大转子骨瓣转移治疗股骨头缺血性坏死。
Methods Basing on the anatomic study, the author designed the greater trochanter bone flap pedicled with middle gluteal muscle branch of lateral femoral circumflex vessel for the treatment of INFH.
本研究与三升农机股份有限公司产学合作，设计、制造一部直热式介质消毒机进行田间实验以完成商品化。
A soil pasteurizer was designed and developed in cooperated with San-Shen Agricultural Machinery Co. Ltd. Field tests were carried out to evaluate the performance the machine.
目的：为切取旋股外侧动脉升支含双营养支的髂骨瓣提供解剖学依据。
Objective: to provide anatomic basis for the dissection of iliac flap pedicled with two nutritive branches of ascending branch of lateral circumflex femoral artery.
我们有四门课程名次上升了，戏剧从第六升到第四，伊伯利亚语从18提高到11位，工程类从14名上升到13名，而且经济学从第17为升至16。
Four subjects have shot up the rankings, with Drama up from 6 to 4, Iberian Languages up from 18 to 11, General Engineering up from 14 to 13 and Economics up from 17 to 16.
有人这知学英语呀。这台新发动机的容积为4升，转速为每分钟4400转，时输出功率是153千瓦。
The new engine has a capacity of 3 litres and a power output of 153 kilowatts at 4400 revolutions per minute.
二十血液样本(每个样品5毫升)从20名学生中收集了伦敦大学国王学院的营养学硕士2013- 2014进行测试。
Twenty blood samples (5ml per sample) were collected from 20 students in MSc Nutrition 2013-2014 of King's College London for the test.
行星在天赤道(celestial equator)上的升落使得赤纬成为了业力占星学中需要考虑的第三个因素。
As the planets rise and fall on the celestial equator, Declination becomes another factor of planetary karma that we need to consider.
这种新的聚丙烯，经济器是单壁扁平帽和符合人体工程学的执行机构，在20毫升，30毫升，四〇毫升和50毫升可用大小。
This new polypropylene, economical dispenser is single walled, with a flat cap and ergonomic actuator, available in 20ml, 30ml, 40ml and 50ml sizes.
这种新的聚丙烯，经济器是单壁扁平帽和符合人体工程学的执行机构，在20毫升，30毫升，四〇毫升和50毫升可用大小。
This new polypropylene, economical dispenser is single walled, with a flat cap and ergonomic actuator, available in 20ml, 30ml, 40ml and 50ml sizes.
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