Crawfish, like shrimp or lobsters, belong to the scientific Crustacea.小龙虾和虾或龙虾一样, 在科学上属于甲壳纲动物.DESCRIPTION OF A NEW SPECIES OF THE GENUS HUNGAROCYPRIS vAVRA 1906 ( CRUSTACEA: OSTRACODA )大型介虫属一新种—— ( 甲壳纲: 介形亚纲 )What are th...
There is a concern about replenish-ment of the population.有人担心人口的补充问题。I'm not sure if the argu-ment holds up, but it's stimulating.我不能肯定该论点是否经得起检验，但它很有新意。Will the President be able to hold to this commit-ment?总...
the annual seal cull每年对海豹的选择性宰杀It is usually good practice to cull the poorest prior to field planting.通常在实践上的好方法是在出圃栽植前挑出最弱的苗木.Said Dr. Cull to the high school students touring the laboratory.卡尔博士对前来参观实验室的高中生们说....
汽油检测系统由毛细管节流器组成.The gasoline detection system consists of a capillary restriction.近来,可采用在冷却塔的水管系统中设置旁通阀或节流阀.The latter may be used with bypass or throttling valves in the tower water pipework circuit.当达到发动机额定转速时,节流板趋于关闭位...