经常性

In order to preserve bird and wildlife populations, regular mowing is not encouraged.

修剪为了保护鸟类和野生动物的数量，我们不鼓励经常性的修剪。

Tent, for the nomad in Chinese history, has been muchly constant as it is the best architecture for the nomad in working. Periodic or aperiodic graze has led in instability of residence and working facility, and tent becomes the sole selection in habitation for thousands of years due to its effective collection and transportation during regular and constant migration.

同样我们再看中国历史上的游牧民族居住的帐篷，之所以长久不变，是因为这是最最适合游牧民族生产作业的建筑功能形式，他们定期或不定期的放牧造成了住所和生产工具的流动性，在经常性的、不断迁徙情况下，帐篷这一简单有效的居住形式因其便于折叠收藏及运输，自然就成了其几千年来不变的居住建筑唯一选择。

These may be responsible for recurrent mumps.

这些可能是负责经常性腮腺炎。

Methods: let 21 patients who usually and repeatedly occurred low pressure dialyse 500 times, and compared with dialysis by high natrium and low temperature 600 times.

21例经常性反复性发生低血压的维持性血液透析患者常规血透500例次，高钠、低血温透析600例次比较低血压发生的情况。

Commerce planning and network analysis is an important part of work in urban commercial construction.

商业网点分析与规划是现代城市商业建设中的经常性的工作。

The celebration of newness is a recurrent aspect of our political life.

新奇的庆祝活动是一个经常性方面，我们的政治life。

Ninian Mathew, director of the Houston Headache Clinic, said the findings suggested that botox, a purified form of the toxin that causes botulism food poisoning, could one day become a routine therapy for people with frequent, intractable migraine.

美国休斯敦头疼诊所主任尼尼恩·马修说，这一发现告诉人们，肉毒杆菌毒素这种引起被肉毒杆菌感染的食物有毒的毒素提纯物，有朝一日会成为治疗棘手的经常性偏头痛的例行药方。

A nominal amount of HK$1 is stated to give recognition to the existence of this project.

该计划由非经常性政府资本补助金支付，并以象徵式港币1元入帐以确认其存在。

Core activities, according to the Jenkins report, are usual or recurring operations and recurring nonoperating gains and losses.

"核心活动，根据该詹金斯的报告，是"常住或经常性业务和经常帐营业外收益和损失。

An out-of-the-ordinary revenue or expense item or a nonrecurrent item requiring a separate entry in a balance sheet.

一项需要在资产负债表中单独列出的非常规收入或支出帐目，或非经常性帐目。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。