不过，这两种分子具有与天然蠕虫粘液一样的化学基，和相似的电荷数。
These, however, had the same crucial chemical groups as their natural counterparts and similar electric charges.
康涅狄格州米德尔敦一家天然气发电厂发生爆炸，形成如同地震一般的冲击波，影响达数英里。
An explosion rocked a natural-gas power plant Sunday in Middletown, Conn., sending earthquake-like shock waves miles away.
1996年，Publix开始出售有机天然食品，而且计划在今年开设数家专卖此类产品的商店。
Publix began selling organic and natural products in 1996 and will open several stores devoted to such products this year.
他表示全面投产究竟对矿物沉积层会造成怎样的影响和必须注入什么样的水和天然气混合物才能维持生产还都是未知数。
What is still unknown, he says, is how full production will affect the deposits, and what mixture of gases and water must be injected to maintain their output.
石油和天然气钻孔机可以在海平面以下数里之外传送地震冲击波，收集回声，并对该地区是否存在石油做出推理。
The oil and gas driller can send seismic waves miles under the sea floor, gather the echoes, and deduce whether petroleum might exist there.
俄罗斯天然气工业公司投下赌注，它买下位于墨西哥湾古巴水域的四个石油开发区块，数家公司计划明年在古巴沿海地区开始钻井施工。
Russia’s Gazprom bought a stake in four oil-exploration blocks in Cuban waters in the Gulf of Mexico. Several companies plan to begin drilling off Cuba next year.
同位素是存在于元素的变体，天然存在，同位素与元素具有相同的化学性质，但由于所含的中子数不同而重量不同。
These are naturally occurring variants of elements,which share the same chemical properties but have different weights because their nuclei contain different numbers of neutrons.
因勘探不足，该国的潜在石油和天然气储量在很大程度上仍是个未知数。
A lack of exploration means the country's oil and gas potential remains largely unknown.
扬声器发射的声音频率1000赫兹是放置数米，从平面反映墙在一个大型会议厅，载有天然气。
A loudspeaker which emits sound of frequency 1000 Hz is placed several meters from a plane reflecting wall in a large chamber containing a gas.
同位素是存在于元素的变体，天然存在，同位素与元素具有相同的化学性质，但由于所含的中子数不同而重量不同。
These are naturally occurring variants of elements, which share the same chemical properties but have different weights because their nuclei contain different Numbers of neutrons.
通过试验给出了天然岩心驱油效率与毛管数的关系，剩余油饱和度与毛管数的关系。
Relationship between the capillary number and sweep efficiency and residual oil saturation were given from laboratory tests.
以12t基准气华白数配气得到的掺混气可以替代天然气作为补充气源或应急气源。
The gas mixture prepared according to Wobbe index of 12t reference gas can replace natural gas as a supplemental gas source or emergency gas source.
在这里，气速对应到一个马赫数之一，指该流速等于当地音速的，特别是天然气。
Here the gas velocity corresponds to a Mach number of one, denoting that the flow velocity is equal to the local speed of sound of the particular gas.
对天然茶秆竹采取不同垦复措施后的出笋数、成竹数、成竹率进行统计分析，结果表明：（1）不同年度的天然茶秆竹采取相同的垦复措施，垦复效果一年比一年好；
The results showed that:(1)the same reclamation measure was adopted to the natural Pseudosasa amabilis in different years, and the reclamation effect of every year was better than that of last year;
对天然茶秆竹采取不同垦复措施后的出笋数、成竹数、成竹率进行统计分析，结果表明：（1）不同年度的天然茶秆竹采取相同的垦复措施，垦复效果一年比一年好；
The results showed that:(1)the same reclamation measure was adopted to the natural Pseudosasa amabilis in different years, and the reclamation effect of every year was better than that of last year;
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