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For a long time a great many systematic research in economical properties has been engaged for transport ships, but it is seldom for trawlers.

长期以来，人们对运输船舶的经济性进行了大量的系统研究，但对拖网渔船系统地研究却不多。

As a result, migration was seldom implemented, and early toolkits such as Xt made it very difficult.

因此，迁移或者复制的状况很少，而且象Xt这种早期的工具包执行起来也相当困难。

Some preliminary studies on A_2BO_4 type oxides materials in therms of electrochemical properties have been reported. But there are seldom deep researches on electrochemical properties of doping in the A site of the A_2BO_4 type oxide.

有关未掺杂或B位掺杂的A_2BO_4型复合氧化物电化学性能已经有了一些报道，但对于A位掺杂的A_2BO_4型复合氧化物电化学性能研究鲜有报导。

It must be noted that left facing swastikas are seldom if ever found in Buddhism's home country of India.

以上这段是：必须指出的是，向左的Swastika 在佛教发起地的印度，是很少见的。

The red-room was a spare chabmer very seldom slept in: I might say never, indeed, unless when a chance influx of visitors at Gateshead-hall rendered it necessary to turn to account all the accommodation it contained: yet it was one of the largest and stateliest chambers in the mansion.

红房子是间空余的卧房，难得有人在里面过夜。其实也许可以说，从来没有。除非盖茨黑德府上偶而拥进一大群客人时，才有必要动用全部房间。但府里的卧室，数它最宽敞、最堂皇了。

The red-room was a square chamber, very seldom slept in, I might say never, indeed, unless when a chance influx of visitors at Gateshead Hall rendered it necessary to turn to account all the accommodation it contained: yet it was one of the largest and stateliest chambers in the mansion.

其实也许可以说，从来没有。除非盖茨黑德府上偶而拥进一大群客人时，才有必要动用全部房间。但府里的卧室，数它最宽敞、最堂皇了。—张红木床赫然立于房间正中，粗大的床柱上，罩着深红色锦缎帐幔，活像一个帐篷。

However, it is seldom necessary to dissect the spikelets in order to identify a member of Andropogoneae .

The小穗包含2小花，不过，为了鉴定一名Andropogoneae的成员对多裂小穗很少必要。

Seldom /'seld m/ad.

很少，不常

Seldom 'seld?

很少；不常

Seldom 'seld?

很少，不常，难得

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。