1) mating season
交尾期
1.
In order to raise the mating rate of Penaeus orientalis, an experiment was made on prolonging the mating season with a plastic big shed in 1993, 1994.
为提高对虾交尾率,1993、1994年进行了塑料大棚延长对虾交尾期试验。
2) mating
交尾
1.
Effect of male and female adult age on the mating success and male EAG response to sex pheromones of the legume pod borer, Maruca vitrata;
豆野螟成虫日龄对交尾的影响及雄蛾对性信息素的触角电位反应
2.
Studies on the behavioral biology of first and second generation adults of the Asian corn borer(Ostriniafurnacalis (Guenee))II the emergence and mating acthritles and oriposition rhythm;
亚洲玉米螟一、二代成虫行为生物学研究——Ⅱ羽化、交尾和产卵节律
3.
Studies on the behavioral biology of first and second generation adults of the Asian corn borer(Ostrinia furnacalis (Guenee))I the resting and mating locations and the behavioral dynamics in the nighttime;
亚洲玉米螟1代和2代成虫行为生物学研究——Ⅰ栖息与交尾场所及夜间行为动态
3) copulation
交尾
1.
The emergence mainly occurred from 18:00 to 2:00 in next day and copulation mainly occurred from 21:00 to 24:00;CONCLUSION The peak of copulation was at 23:00 or so.
羽化主要集中在18:00~凌晨2:00,而交尾时间在21:00~24:00,其中23:00左右是交尾高峰;【结论】雌成虫有多次产卵现象,雄成虫具有多次交尾行为。
2.
The time of emergence of both sexes and copulation frequency and time of dif- ferent individuals were distinct.
该虫雌雄成虫羽化时间不一,不同个体交尾的时间、次数及交尾持续时间也不尽相同;卵的孵化高峰在7月下旬—8月上旬;幼虫蛀食有一定的规律性;蛹期大约在5月上旬—6月下旬。
4) mating peak
交尾高峰
1.
The results showed that the adults mated during 20:00-01:00,and the mating peak arrived between 22:00-23:00.
结果表明,茶尺蠖成虫羽化后,大多于次日晚20:00~凌晨01:00交尾,交尾高峰集中在22:00~23:00,翌日黄昏开始产卵,20:00~00:00产卵最多。
5) mating behavior
交尾行为
1.
Evidence for a female sex pheromone in the mating behavior of Coscinesthes salicis adult.;
雌性信息素在麻点豹天牛成虫交尾行为中的作用
6) mating rate
交尾率
1.
The results were as following:8204 female parent prawns, 5683 male parent prawns and 5360 coupled prawns were obtained in the two years, the mating rate was 71.
1997、1998年利用越冬亲虾进行性腺促熟,用镊烫法切除眼柄,促进亲虾发育。
2.
In order to raise the mating rate of Penaeus orientalis, an experiment was made on prolonging the mating season with a plastic big shed in 1993, 1994.
为提高对虾交尾率,1993、1994年进行了塑料大棚延长对虾交尾期试验。
参考词条
补充资料:欧洲式期权、美国式期权与亚洲式期权
欧洲式期权、美国式期权与亚洲式期权
【欧洲式期权、美国式期权与亚洲式期权】期权合约所规定的权利有一定的时效期,过了失效日后,权利即行作废。一些期权规定权利仅能在有效期的最后一天执行,这种期权被称为欧洲式期权(ell功pean叩tions);另一些期权则容许在有效期内任何一天执行,这种期权被称为美国式期权(一~oPtions)。值得指出的是,虽名为欧洲式或美国式期权,但已无任何地理上的意义。由于欧洲式期权的规定过于严格,又出现了一种“改变的欧洲式期权”,它允许期权在一定的时间范围内进行交易。可见,美国式期权为期权购买者提供了更多的选择机会,因此,它的购买者也往往需支付更高的保险费。近年来无论在欧洲或美国,所交易的期权均以美国式为主,欧洲式期权虽仍存在,但其交易量已比不上美国式期权。 在so年代末期,市场上又出现了一种所谓亚洲式期权(asian ontions),但也无地理上的意义,其差别主要在于履约价值(exe而sev公此)的计算。以买权为例,无论是美国式期权或是欧洲式期权,执行权利所能得到的履约价值均为当时标的物的市价减去履约价格,再乘以合约所定的数量,但亚洲式期权的履约价值则为权利期间内标的物市价的平均(计算至履约日为止),减去履约价格,再乘以合约所定的数量。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。