求翻译：防渗墙和帷幕灌浆同时施工，本段防渗墙成槽施工的同时，下一段导槽同时开挖浇筑施工；上一段防渗墙浇筑完成，进入再下一槽段施工，导槽施工与防渗墙槽段施工交替进行，直至所有槽段施工完成。先期浇筑的防渗墙达到拆除标准后，拆除、凿除、回填等施工。其中坝体防渗墙成槽采用“抓取法”工艺。帷幕灌浆采用“小口径、孔口封闭、自下而上、孔内循环、高压灌浆”的方法。为了保证工程的工期、安全、质量等，通过编制施工进度计划方案，安全、冬雨季施工保证措施，应急预案等确保工程顺利完工。是什么意思？

And curtain grouting impervious wall construction, and this paragraph cutoff wall tank construction , excavation under section guide groove while placing construction ; the period of impervious wall completed pouring into the tank and then the next segment of construction , construction and guides

an impermeable walls and curtain grouting carried out at the same time, the anti-seepage wall into a slot in the construction, the next paragraph guides while digging out pouring construction; the impermeable walls completed pouring into the next slot, construction, guides construction and anti-seep

The cut-off wall and the curtain is in the milk also constructs, this section of cut-off walls become the trough construction at the same time, the next section of guide channels simultaneously excavate the construction construction; The previous section of cut-off wall construction completes, enter

Construction of curtain Grouting in seepage control walls and at the same time, diaphragm wall trench construction of this paragraph at the same time, a guide channel and excavation under construction; impervious wall placement completed in the preceding paragraph, paragraph into the next slot const

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