We can assure you that the goods were in good condition when left here and the damage must have occurred during transit.
我们可以肯定货物离开此地时情况完好，损坏一定是在运输途中发生的。
To actuate all valves it is necessary to provide certain data to assure proper sizing and prevent damage to the system.
为了驱动所需的阀门，有必要提供某些参数，以保证能够恰当选择所需的执行机构，防止损坏系统。
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