查询词典 persistent

The most dramatic example is the Ogallala aquifer,the largest underground water source in the world.this enormous reserve runs through the agriculturally critical high plains states,from south Dakota to central texas.over-pumping for irragation has drained some parts of the aquifer dry and persistent regional drought has stifled refill by underground streams.

过多地采集地下水用于灌溉已经使地下水层的一些地方干枯，而且持续的区域性干旱也使地下河不能补充地下水层。

Ovary included; stigma filiform, on a style, pilose on 1 side, usually persistent for some time; ovule orthotropous.

子房内藏；柱头丝状，关于一花柱，在一边上，通常宿存一段时间；胚珠直生的。

Ovary included; style short; stigma ovoid, fimbriate, persistent; ovule orthotropous.

子房内藏；花柱短柱头卵球形，流苏状，宿存；胚珠直生的。

Ovary straight; stigma filiform, papillose-hispid, almost persistent; ovule orthotropous.

子房直；丝状，乳突状硬毛的柱头，几乎宿存；胚珠直生的。

Methods Thirty-eight patients with drug refractory paroxysmal or persistent AF underwent circumferential pulmonary vein ostial isolation and were followed up to investigate the efficacy and safety of the treatment.

在EnSite NavX三维电生理系统指导下对38例药物治疗无效的阵发性或持续性房颤患者行环肺静脉导管消融，随访观察其疗效和安全性。

Risk factors of mortality by univariate analysis were: outborn babies, resuscitation before admission, first born baby, low pH, high oxygen index, high alveolar- arterial oxygen tension gradient (AaDO2) at admission, high Of and AaDO2 at 2 hours after admission, shock, pneumothorax, asphyxia, pulmonary hemorrhage, persistent pulmonary hypertension of newborn, and renal failure. Logistic regression analysis showed asphyxia, pneumothorax and PPHN are the most important risk factors of mortality in MAS. How to diminish these events is the key point for reducing the mortality rate of MAS.

又变项分析显示，死亡危险因子包括院外出生婴儿，黑心诊时需急救，第一胎，刚入院时的Ph、OI、AaDO2，住院后2小时的OI、AaDO2，休克、气胸、室息、肺出血、新生儿肺动脉高压；回归分析则显示窒息，气胸及新生儿肺动脉高压是死亡的危险因子，如何减少这些事故，将是降低便吸入症候群死亡的重要因素。

Flowers opening before or at same time as leaves, pedicellate, with persistent scales or conspicuous bracts.

开阔的的花在或在相同时间作为叶，有花梗，具宿存鳞片或明显苞片之前。

Leaves borne on persistent, peglike projections, flattened or ± rhombic in cross section; bracts rudimentary, included.

宿存的叶生于，钉状预测，扁平或多少在横断面上；苞片不发育，包括。

Branchlets irregularly alternate, leaf scars often elliptic or on peglike projections; seed cones usually pendulous or erect; seed scales persistent at maturity.

不正规交替的小枝，经常省略和在钉状预测上的叶痕；球果通常下垂或直立；宿存的种鳞成熟时。

This suggests persistent expression of SiDIV and ceasing of SiCYC1A and SiCYC1B in late peloric flower stage may generate the actinomorphic flower.

综此推测，变异型的花发育成辐射对称可能是由於开花晚期时SiCYC表现量下降及SiDIV持续表现，造成花发育后期两侧对称性的无法继续维持，而成了辐射对称花形式。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"