有效厚度

effective thickness的用法和样例：

例句

When calculating oil and gas reserves by volumetric method, one factor affecting the computing accuracy is reservoir effective thickness.用容积法计算油气储量时，影响储量计算精度的因素之一是储层有效厚度。

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一起听英语

Brains and politics

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She spun her snell with silkglands on the underside of her abdomen. The threads harden on contact with air. The trap's set, but she's treading carefully. The web's only sticky in places. She can move around, but others can't. The first bite of the da

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事实：达芬奇眼中的树-Da Vinci’s Rule of the Trees

Pre-Listening Vocabulary observation: something that you see cross section: a view of the inside of something after a cut has been made across it hold true: remain a fact or truth even in other situations ideal: suitable sap: fluid (sugar and mineral

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Facts-事实

妊娠糖尿病与心脏疾病有关

妊娠糖尿病与心脏疾病有关 WASHINGTON, March 12 (Xinhua) -- Women who develop gestational diabetes may face an increased risk of early heart disease later in life, even if they do not develop diabetes subsequent to their pregnancy, U.S. res

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英语新闻

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学英语单词

-rigged

a cutting of sugar cane

arctic continental air

asensio

automatic stabilization and control system

autoxidation of gasolines

back cone( normal cone)