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- Refractive index is the essential parameter of tissular optical characteristics. 光在生物组织中的传输行为与组织的光学特性有关。
- Land surface emissivity (LSE) is an essential parameter for land surface temperature (LST) retrieval from thermal remote sensing data. 地表比辐射率是用热红外波段遥感数据反演地表温度的关键参数。
- Not only space-time coding in the MIMO but also demodulation in the OFDM, the rather exact CSI is essential parameter for dealing with data in the MIMO-OFDM. 在MIMO-OFDM系统中，不论是对MIMO进行空时处理，还是对OFDM进行相干解调，都需要较为准确的CSI作为数据处理的必要参数。
- Her most essential quality is kindness. 她最主要的品质是善良。
- Surprise is an essential component of my plan. 我这项计划主要就是想使大家惊喜一下。
- Rice is our essential foodstuff in life. 大米是我们生活的基本食物。
- National unity is essential in time of war. 举国团结在战时是非常重要的。
- What is the essential theme of the play? 这剧本的主题是什麽?
- Limit your expenditure to what is essential. 你要把开销限制在必要的范围内。
- It is essential that he get up early. 他有必要早起。
- Get a hustle on to stockpile these essential material. 赶快把这些重要材料贮放起来。
- Mass education is essential in promoting democracy. 民众教育对提倡民主是非常重要的。
- It is essential to balance one's budget. 量入为出是很重要的。
- Mutual understanding is essential to friendship. 相互理解对友谊至关重要。
- Articulate speech is essential for a teacher. 对教师来说,口齿清楚是必不可少的。
- Car bombs have become essential terrorist weapons. 汽车炸弹已经成为恐怖分子主要的武器。
- Impartiality is essential to a judge. 公平是当法官所必需的。
- Preventive measures are essential. 预防手段是必要的。
- Hard work is essential to success. 成功必须努力工作。
- Spend by each department have to fall within certain parameter. 每个部门的开支必须属于确定的系数之内。
