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But before she could get there, the crowd dispersed before a couple of policemen, who had appeared among them brandishing their truncheons

可是还没到，那一堆人霍地分开，露出两个巡捕，拿起棍子，正在找人发威。热体的辐射可以用分光仪使之产生色散而形成光谱。

If the rain comes before the wind, lower your topsails, and take them in; if the wind comes before the rain, lower your topsails, and hoist them again.

如果先下雨后刮风，就收下你的中桅帆；如果先刮风后下雨，就把中桅帆再扬起。

If the rain comes before the wind, lower your topsails, and take them in; if the wind comes before the rain, lower you topsails, and hoist them again.

如果先下雨后刮风，就收下你的中桅帆；如果先刮风后下雨，就把中桅帆再扬起。）这条谚语不仅指导水手何时扬帆。

Spaceship traveled above, a new-looking earth appeared before us, an earth that we had never seen before.

当宇宙飞船在上空运行时，一个全新的地球出现在我们面前，以往我们都不曾看过。

When the spaceship traveled above, a new-looking earth appeared before us, an earth that we had never seen before.

当宇宙飞船在上空运行时，一个全新的地球出现在我们面前，以往我们都不曾看过。

By studying the deformation and evolutionary sequences around the Panshan granitic pluton, east-central Yanshan orogenic belt, and 40 Ar/ 39 Ar thermochronological test and analysis,we present the structural evolutionary process of the overlying strata before pluton intruded as well as it was intruding. The sequences of regional deformation are as follows: before the intrusion of Panshan granitic pluton, the N-S trend contraction in the east-central Yanshan orogenic belt took place, which resulted in the regional EW-trending Malanyu multi-fold and Jixian thrust fault; then Panshan granitic pluton intruded into the south limb of the Malanyu multi-fold and cut-through the Jixian thrust fault; later, the reactivity of the Jixian thrust fault cut off the synclines around thePans han granitic pluton.

通过对燕山东段盘山花岗岩岩体周缘构造变形特征、演化过程的研究，并结合40Ar/39Ar 热年代学测试和分析，提出盘山岩体侵位前、侵位时其上覆岩层的构造演化过程：三叠纪末(210-200 Ma)盘山岩体侵位前，燕山中东段受南北向挤压作用形成了近东西向的马兰峪复背斜和蓟县逆冲断裂；盘山岩体侵位于先期形成的马兰峪复背斜南翼，并侵蚀了蓟县断裂；蓟县断裂的后期再次活动截切了盘山岩体的周缘向斜。

Woodwork and glass gave way before him; but before he got quite through,Gregson, Lestrade, and Holmes sprang upon him like so many staghounds.

但是，就在马车夫正要钻出去的时候，葛莱森、雷斯垂德和福尔摩斯就象一群猎狗似地一拥而上，把他揪了回来。

Before joining the Autobots,she passed her time tracking turbofoxes on Cybertron with some of the other speedsters,taking great pride in approaching as close as she could to them,quickly and silently,before tagging them with her bow.

过去在塞伯坦星球上，她和其他飞速猎手一起追踪沃伦狐狸，以打发时间。那时，她还没有加入博派。让阿尔西很引以为傲的是，她能够把猎物咬得很紧，还没有等他们反应过来就已经用弓箭抓获他们了。

Not in the concrete before pouring, as the sliding mode in a simply-supported platform, and the structure stiffness is weak, therefore, to open slide before the platform is strictly prohibited Slipform steel piling up.

在混凝土没有浇筑前，由于滑模平台处于简支状态，结构刚度较弱，因此，开滑之前，滑模平台上严禁堆放钢筋。

Because the flow meter orifice pressure by correspondence before the impact of heavy flow, if required flow accuracy of 10%, the valve must be over before the straight section 10d, and this works in practice extremely difficult to protect.

由于孔板流量计的流量压差对应关系受到前流态影响极重，如果要求流量精度达到10%，则必须阀前有10d以上的直管段，而这一点工程实际中极难保障。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷