使爆裂

Keel is not moistureproof: Be in normally without dry wooden keel moisture content 25% the left and right sides, and eligible wooden floor moisture content is in commonly 12%, humidity has differred congress to make wooden floor sucks tide quickly, cause blowout of face of the arch since the floor, lacquer.

龙骨未防潮：未经干燥的木龙骨含水率通常在25%左右，而合格的木地板含水率一般在12%，湿度差过大会使木地板快速吸潮，造成地板起拱、漆面爆裂。

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。