Ifsucha补院lloyspossessotherpropertieswhich
makethemsuitable松爱星把剧其fordiecasting,theyare
obviouschoicesfortheprocess,买becausetheir
lowermeltingpointwillleadtolongerdie
livesthanwouldbeobtainedwithalloysof
highermeltingpoints.
如果这些合金具有的其他特质使它们适于印模铸造,很明显固大家述决显它们就是这项流程的最佳迫地丝校布盐道步祖选择,因为与高熔点的合金相比,它们的低熔点会延长印模的寿命。
However,evenifpredictio微议持范军含宣周空nbecomes
possible,peoplewholiveinareaswhere
earth众quakesareacommonoccurrence
willstillhavetodotheirbesttoprevent
disastersbybuildingstructuresthatare
resistanttogroundmovementandby
beingpersonally吃半prepared
然而,即便可以常空践进行地震预测,居住在地震带的人们的有效防震措施仍依赖于建筑物的抵抗地面运动的结构和自我均尼类区准备。
Scientistsarelearningagreatdealabout
howthelargeplatesintheearth’scrust
move,thestressesbetweenplates,how
earthquake动曲呢协子合战某自者立swork,andthegeneralprobability
thatgivenplacewillhaveanearthquake,
althoughtheystillcannotpredictearthquakes
尽管仍无法对地震进行预测,科学家们正大量研究地壳困一某肉花己困答在的板块运动方式,板块间压力,地震如何产型映混生,以及特定地域发生地震的可能性。
Asthescienceofgeneexpressiongrows,we
maybeabletocreategenesthatcanturn
themselvesoffa判介想段接见ftertheyhavegonethrougha
certainnumberofcelldivisionsorafterthegene
hasproducedacertainamountofthedesired
杨条举紧半所时史晚刚product.
线查伴随着基因表达研究说师终走发的深入,我们或许可以合成一种基因,它能够在细胞分裂一定次数后或产生一定量目标产物后自行关闭。