查询词典 occurrence

Some discussions on essence,occurrence and change of BPH biotype were also provided

此外，致害力的纯化速度缓慢，容易发生衰退，显示的是数量性状的特征和某种程度的杂种优势。

Objective To study the occurrence and distribution of birth defect of perinatal infants, and analyze influence factors.

目的 了解医院出生缺陷发生情况及分布特征，分析可能的原因。

Natural Occurrence—Sweet and bitter orange peel, clove bud, blackcurrant, pepper, mace and sage.

天然存在：在甜橙皮和苦橙皮，丁香芽，黑醋，胡椒，肉豆蔻衣和鼠尾草中找到。

Natural Occurrence—Sweet and bitter orange peel, clove bud, blackcurrant, pepper, mace andsage.

天然存在：在甜橙皮和苦橙皮，丁香芽，黑醋栗，胡椒，肉豆蔻衣和鼠尾草中找到。

In order to avoid future occurrence of similar situations, when your baby to sleep in on both sides that can be placed to block the release of some of the things, such as by article or pillow will do.

为了避免以后类似情况发生，宝宝睡觉的时候你要在两边放上一些可以放一些能够遮挡的东西，比如被条或者枕头都行。

In order to master the occurrence of wheat leaf blotch and evaluate resistance of wheat cultivars in Henan Province from 2005 to 2007, 49 wheat cultivars were selected and their resistance to wheat leaf blotch were identified.

在自然发病条件下，系统调查了河南省主栽小麦叶枯病在2005年－2007年的田间发病情况，并采用自然病圃法鉴定了49个小麦品种对叶枯病的抗性。

"Ghost blowlamp colleagues of Minamiarai ancient tomb," rollup is seal in the shock must reproduce the mysterious ancient city of Phoenix bile arena and a series of bizarre events that followed the mysterious occurrence.

鬼吹灯同人之南荒古墓》汇总被封印在惊绝古城的凤凰胆神秘再现江湖，一连串神秘诡异的事件随之发生。

This is almost a twice or three-times-per year occurrence in the Blue Mountains.

这样的蓝山每年将经历2到3次。

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The trigger mechanism of PETM remains obscure. One plausible explanation involves abrupt release of marine methane hydrate. Magma activity and bolide effect are also announced accounting for the occurrence of PETM.

对于PETM的触发机制，主流的观点认为是海底天然气水合物突然释放造成巨量甲烷迅速进入表层系统引发的碳循环系统内部反馈。

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。