Toxicological test to Lygus lucortum Meyer-Dur s over winter eggs and field control tests;
冬枣绿盲蝽越冬卵毒力测定与田间防治试验
Seasonal changes in the supercooling point of overwintering eggs of Locusta migratoria;
飞蝗越冬卵过冷却点的季节性变化及生态学意义
Systemtic observation on the hatching habit of the overwintering eggs of Theophila manderina Moore was conducted in Nanchang suburbs in the period from 1994 to 1996.
系统地观察了野桑蚕越冬卵的孵化习性,在有效积温得到满足而候平均温度升到15℃以上时,越冬卵即开始孵化。
The end of the peak egg hatch is the key time for biopesticide control of overwintering spider mites inchestnuts.
生物农药防治板栗红蜘蛛的关键时期为越冬卵孵化盛末期。
Frost, if severe and long enough, kills exposed aphids, but enhances development of overwintering eggs.
霜冻,如果是时间较长的霜冻,则可杀死裸露的蚜虫,但可引导产生越冬卵。
RELATIONSHIP BETWEEN PUPA WEIGHT AND LAID EGG AMOUNT OF Philosamia cynthia
樗蚕越冬代雌蛹重与产卵量关系研究
TRIALS FOR IMPROVING GOOD EGG PERCENTAGE OF AUTUMN-PRODUCED HIBERNATING EGGS BY ACID TREATMENT IN WINTER WASHING AND DISINFECTION
秋制越年蚕种冬季浸酸处理提高良卵率试验
Effects of starvation on ovarian development in female Odontobutis potamophila during over-wintering period
越冬期饥饿对河川沙塘鳢雌鱼卵巢发育的影响
STUDY ON HYPHANTRIA CUNEA (DRURY)LIVING THROUGH WINTER GENERATION ADULT EMERGENCE AND OVIPOSITION HABITS
美国白蛾越冬代成虫羽化规律及产卵习性的研究
Study on Oviposition Site Selection and Overwinter Strategy of Chrysopids (Neuroptera: Chrysopidae) in Agroforestry Environment;
农林复合环境草蛉产卵场所选择及越冬对策研究
They fly from the north to seek winter shelter in West Lake, stay in Hangzhou for, at most, half a year, and then fly back without laying a hatch.
它们南飞而来,在西湖里越冬,在杭停留至多不过半年,接着便飞返北方,从不在此下卵孵蛋。
The results of studying for life table indicated the deaths of eggs and primary hatching larvae and diapause of overwintering larvae are key-factors of population change.
通过生命表研究看出:卵、初孵幼虫死亡及越冬后滞育是种群变动的关键因子。
as you go farther north, so the winter becomes longer and more severe.
你越往北走,冬天越长也越寒冷。
The weather is favourable to the winter crops.
天气有利于越冬作物。
winter-annual cover crops
一年生越冬覆盖作物
She winters, and keeps warm her note.
她越冬,温暖着她的音符。
Study on Italian Bee Wintering Between Indoor and Outdoor
浙农大1号意蜂室内越冬与室外越冬比较试验
The days get shorter as winterapproaches.
冬天来临, 白天越来越短了.
in the gathering gloom of a winter's afternoon
在冬天的一个下午, 天色越来越暗
much snow precipitation the pollution heavy.
冬季,降雪越多污染越重出现的概率越大。
PURIFICATION AND CHARACTERIZATION OF AN ASPARTIC PROTEINASE IN THE EGGS OF PHILOSAMIA CYNTHIA RICINI
蓖麻蚕卵天冬氨酸蛋白酶纯化及性质