Because there are plenty of dusty particles and clay mineral in tailings, it is a main technical problem to solidify and dewater the tailings.

尾砂中含有大量的粉粒和粘土矿物，尾砂浆的固结和脱水是尾砂固化的主要技术难题。

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The main technical problem was bearing inner diameter profile grinding, during processing new product YA2, so that the diamond contact roller adjuster was designed.

新产品YA2轴承加工中的主要技术难点是轴承内径成形磨削，为此设计了金刚石滚轮修整装置。

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The main theories are errors by the pilot or by the air-traffic controllers, a technical problem with the navigation equipment or some combination of these.

主要推断是飞行员驾驶失误或由于空中交通管制，导航设备出现技术故障或者是两者共同所致。

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The province's main power station at Kilroot, near Belfast, was shut down following a technical problem with generators and the other power station at Ballylumford, near Larne, was only partially working.

BBC: Parts of the province were left without power