亦即

Approach trench operations -- digging trenches towards the enemy's fortifications, then approaching under cover to make sudden attacks

3对壕作业，亦即近迫作业——对着敌人的坚固工事，挖掘壕沟，荫蔽接近敌人，突然发起冲击

Approach trench operations -- digging trench es towards the enemy's fortifications, then approaching under cover to make sudden attacks

3对壕作业，亦即近迫作业——对着敌人的坚固工事，挖掘壕沟，荫蔽接近敌人，突然发起冲击

When the flow through the balance of the piston damping the flow of holes increases, the balance of the piston, the next increase in pressure on both sides of a balanced increase in the distance the piston increases, and vice versa reduced; and also because the spring stiffness is very small, so that shift the balance of the piston pressure required very few changes, so the flow through the Poppet head is not much change, so the first opening Poppet very few changes, to mention the pressure of moving the first opening can be said to remain unchanged, that is, when the pilot valve spring after a set, Poppet Head was opened, the balance piston chamber pressure remained basically unchanged.

当流经平衡活塞上阻尼孔的流量增加时，平衡活塞上、下两侧的压差增加，平衡活塞上升距离增加，反之则减小；又因为弹簧的刚度很小，使平衡活塞上移所需压差变化很小，所以通过提动头的流量变化也不大，因此提动头的开口变化很小，提动头开启的压力可以说是不变的，亦即当先导阀的弹簧一经设定后，提动头被打开时的平衡活塞上腔的压力基本保持不变。

As he faded, he mourned the vanishing of the tribes."Primitive" man was not nobler or purer than he was, but they were, in the deepest sense, connected: for universal laws linked his thinking, in all its book-lined complexity, to that of the Indian clad only in tree-bark, trailing a deer along a forest path.

在自己岁月老去的同时，他也为原始族群的消失感到哀伤：&原始&人虽然并不比他更高尚或纯洁，却在最深层的意义上和他连接：因为普适的法则将他的思维，亦即他全部著作内衬出的复杂性思维，连接仅身着树衣、沿着林间小路逐鹿的印第安人的思维。

For example,the spiral arrangement of scale－bract complexes on ovule－bearing pine cones,where the female reproductive organs of conifers are located,is important to the production of airflow patterns that spiral over the cone's su***ces,thereby passing airborne pollen from one scale to the next.

例如，带有胚珠的松球的鳞苞综合体的螺旋状安排，亦即松柏目植物雌性殖器官的所在位置，对于气流模式的形成与产生殊为重要，而这些气流模式在松球的表现盘旋上升，从而把在空气中飞行的花粉从一个鳞苞传播至下一个鳞苞。

For example,the spiral arrangement of scale－bract complexes on ovule－bearing pine cones,where the female reproductive organs of conifers are located,is important to the production of airflow patterns that spiral over the cones surfaces,thereby passing airborne pollenfrom one scale to the next.

例如，带有胚珠的松球的鳞苞综合体的螺旋状安排，亦即松柏目植物雌性殖器官的所在位置，对于气流模式的形成与产生殊为重要，而这些气流模式在松球的表现盘旋上升，从而把在空气中飞行的花粉从一个鳞苞传播至下一个鳞苞。

China's capital Beijing on as if it's to Liuzhou is issued by the Northwest Mountain方天寿clock, which is Ziwei Yuan Fa Shan Hai clock, because Ziwei Sadakazu Star in the first four of your expensive, so Beijing Bai six calendar years without failure.

就好似我国首都北京城，它之来龙便是由西北方天寿山发脉，亦即是亥山紫微垣发脉，因为紫微垣是天星四贵中之第一贵，所以北京城历六佰多年而不衰。

Both-to-Blame Collision Clause.

双方有责碰撞条款如果船舶由于他船疏忽以及本船船长、船员、引航员或承运人的受雇人在驾驶或管理船舶中的行为、疏忽或不履行职责而与他船碰撞，则本船的货物所有人应就他船亦即非本船货物所有人所载货物的船舶或该船舶所有人所受一切损失或所负一切赔偿责任，给予本船承运人赔偿。

That is to say that the Intake stroke, Compression stroke, Power stroke and Exhaust stroke are one engine cycle.

亦即，发动机完成吸气、压缩、作功、排气一个循环冲程为一个周期。

For geometrical propositions are one and all apodeictic, that is, are bound up with the consciousness of their necessity; for instance, that space has only three dimensions.

因为几何学的定理全都是无可置疑的，亦即与它们的必然性的意识结合在一起的，例如空间只有三种量度；但这一类定理不可能是经验性的命题或经验判断，也不是从这些经验判断中推出来的。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。