300的例句大全

Arriving at this 300-foot depth, I still detected the sun's rays, but just barely.

到了三百英尺的深度，我还能看见太阳光，不过很微弱。

Methods Thirty-five patients with massive emptysis ( hemorrhagic quantity per day ranged from 300 mL to 500 mL) underwent BAE. Gelatin sponge granules or polyvinyl alcohol ( PVA) granules were used as embolization agents.

方法35例大咯血患者，24h咯血量为300mL～1500mL，急诊行病灶供血支气管动脉栓塞术，栓塞材料为明胶海绵颗粒或聚乙烯醇（PVA）颗粒。

Experimental study for measuring distribution of thermal neutron flux rate in 300~#-1 target

300~-1靶片内热中子注量率分布测量实验研究

Simulation System Software for Thermal Stress and Fatigue Life Expenditure of 300 MW Turbogenerator Units

300MW汽轮发电机组热应力及疲劳寿命损耗仿真系统软件的研究

The finding pushes back the first known use of flour by some 10,000 years. Which means that 300 centuries ago, Fred and Wilma might have had a kind of prehistoric pita bread on the menu.

这项发现将人类最早使用面粉的时间提前了约10000年，这就意味着30000年前，弗瑞德和威尔玛就可能已经开始享用原始皮塔饼了~

Huangshan Scenic Area, a World Natural and Cultural Heritage and World Geopark, had a rapid development of tourism industry after the reform and opening up, with 104,300 passengers in 1979 and 2.4 million now.

黄山风景区是世界自然文化遗产和世界地质公园，改革开放后，旅游业飞速发展，1979年区内旅游人数为10.43万人次，目前进山人数已达到240万人次左右。

The solid phenol-formaldehyde resin could be endured over 300 ℃ after self condensation reaction at 100 ℃ and be used as profile control and water shutoff agent for high temperature.

100℃下自脱水缩合的酚醛树脂可作为抗高温性能（>300℃）的调剖堵水剂。

Many modern British surnames go back to the Vikings and Anglo-Saxons who ruled England for 300 years, until 1066 AD.

许多现代英国人的姓氏可以追溯到统治了英格兰300年的维京人和盎格鲁-撒克逊人，这一统治直至公元1066年。

The denitrogen still happened as Ar was filled in low vacuum ( 9 300 Pa), in this case the denitrogen was second-order reaction with mass transfer rate coefficient 0.022 cm/ s.

在低真空（9300Pa）过程充Ar，仍会发生脱N行为，此时脱N为二级反应，传质速率常数为0022cm/s。

The problem was that the jet crashed, the BEA final report says, in a region with rugged terrain and whose ocean bed presents great variation in depth over short distances of between 700 metres and 4,300 metres.

法国民航安全调查分析局的最终报告称，问题在于飞机失事位置为一个地形崎岖、海底短距离间深度差异巨大的区域（700到4300米深不等）。

300 keV xe~ ( 2+) ion beam induced reaction at the interface of metal and silicon

300keV Xe~（2+）离子束诱导的金属/硅界面反应

The experiments were designed to remove HCl, NH 3, organic sulphur and coal tar component in high temperature coal gas, in combination and simultaneously by using a fixed-bed reactor at the reaction temperature range from 300 ℃ to 550 ℃.

在固定床反应器中首先对高温煤气中氨、有机硫化物、氯化氢及焦油4种污染物进行了同时脱除，其中选择CS2和1-甲基萘分别作为高温煤气中有机硫化物和焦油蒸气的模型化合物。

Special research on sealing behaviour for reactor vessel of 300 MWe nuclear power plant

30万千瓦核电站反应堆压力容器密封性能研究

For example, a study of 300 elderly people published by the journal Neurology last year showed that regular engagement in intellectually strenuous activities like reading slowed the rate of memory loss later in life.

比如，《神经病学》杂志去年发表的一项针对300名老人的研究显示，阅读等有规律的智力刺激能够减缓老年人的记忆力衰退。

Cause and treatment of HP main stop valve jam on a 300 MW steam turbine

300MW汽轮机高压主汽门卡涩原因及其处理

Simulating of Station Service System for 300 MW Electric Power Simulation Unit

300MW火电机组仿真机厂用电系统的仿真

Life management system for boiler components of 300 MW units

300MW机组锅炉部件寿命管理系统

Optimization Debugging of 300 MW Unit Boiler Steam Temperature Control System

300MW机组锅炉汽温控制系统优化调试

Primary Frequency Adjustment Theory of Power System and Test Research on Some 300 MW Unit

电力系统一次调频理论及其在某300MW机组的试验研究

Special Problems and Its Solutions of 300 MW Combined Cycle Unit's Water Level Control

300MW联合循环机组水位控制的特殊问题及其对策