Soil nema todes are the most abundant metazoan which have various types of life-history and feeding habits and play a key role in soil food web.

线虫作为土壤中数量最丰富的后生动物，其生活史和取食类型多样，在生态系统中发挥着重要作用。

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It's available in both indoor and NEMA 3r-rated outdoor enclosures, able to resist elements such as rain, sleet and ice. And it can be mounted on either a wall or pedestal.

它既可在室内使用，又可在符合美国电气制造商协会3r标准的室外使用，能够防雨水、冰雹和冰等，可被安装在墙或底座上。

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Control voltage and enclosure designations (NEMA, etc.).

控制电压和外壳结构(NEMA，等等)。

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About 70% of all electric motors are rated between 1 hp and 200 hp, yet only about 15% meet NEMA standards.

FORBES: Magazine Article

Motor makers will battle to push NEMA Premiums to companies like Boeing (nyse: BA - news - people ) and Nestle .

FORBES: Magazine Article

In the last nine months, revenue at Baldor has fallen 5%, while sales of NEMA Premiums are up, says Chief Executive John McFarland .

FORBES: Electric-Motor Business Goes Into High Gear