Objective:To explore the relationship between proadrenomedullin N terminal 20 peptide (PAMP) and left ventricular hypertrophy with essential hypertension(EH).
目的：探讨原发性高血压（EH）患者血浆中肾上腺髓质素前体N端20肽（PAMP）与左室肥厚的相互关系。
Primarily, the article expatiates the off-hire clause and the essential to fix it in the CP. Meantime, it describes the way to pay hire under the CP n the hire must be paid punctualy and adequately.
文中首先对停租条款进行概述，阐明在定期租船合同中订入停租条款的必要性，同时简要介绍了租约中租金支付的方式及租金必须足额按时地支付。
Nitrogen (n) is one of the most essential mineral elements and the major limited nutrient for plants.
氮素是植物需求量最大的矿质营养元素，也是影响植物生长的主要营养元素。
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